Power (P) = 2kw =2000W

Current (I) = 5A

Voltage (V) = 220V

Power = current × voltage

therefore P = I × V

Current = Power/voltage

I = P/V

I = 2000/220

I = 9.0909 A

As the amount of current flowing in the conductor is more than 5 A which is the safe limit, then the fuse will get broken and hence the circuit will get open.

Power (P) = 2kw =2000W

Current (I) = 5A

Voltage (V) = 220V

Power = current × voltage

therefore P = I × V

Current = Power/voltage

I = P/V

I = 2000/220

I = 9.0909 A

As the amount of current flowing in the conductor is more than 5 A which is the safe limit, then the fuse will get broken and hence the circuit will get open.

Power (P) = 2kw =2000W

Current (I) = 5A

Voltage (V) = 220V

Power = current × voltage

therefore P = I × V

Current = Power/voltage

I = P/V

I = 2000/220

I = 9.0909 A

As the amount of current flowing in the conductor is more than 5 A which is the safe limit, then the fuse will get broken and hence the circuit will get open.

Power (P) = 2kw =2000W

Current (I) = 5A

Voltage (V) = 220V

Power = current × voltage

therefore P = I × V

Current = Power/voltage

I = P/V

I = 2000/220

I = 9.0909 A

As the amount of current flowing in the conductor is more than 5 A which is the safe limit, then the fuse will get broken and hence the circuit will get open.

3 kΩ

10 kΩ

13 kΩ

18 kΩ

50 V

1970 ohms

705 K ohms

20 Amps

Product Over Sum Method

Reciprocal Method

Value Over Number Method

Scientific Method

True

False

True

False

True

False

Electronegativity: when two different atoms in a molecule are bonded together by a covalent bond the electron pair forming the bond is

not shared equally by both the atoms

in other words the shared pair of electrons do not lie in the middle of the molecules but shift towards the atom having greater electron affinity

the tendency of an atom to attract electrons to itself when combined in a

compound is called electronegativity

for example in the molecule of hydrogen chloride electron pair is attracted more towards chlorine

thus chlorine is more electronegative than hydrogen

the value of electronegativity depends upon the ionization potential and

electron affinity of the atom

in other words the shared pair of electrons do not lie in the middle of the molecules but shift towards the atom having greater electron affinity

the tendency of an atom to attract electrons to itself when combined in a

compound is called electronegativity

for example in the molecule of hydrogen chloride electron pair is attracted more towards chlorine

thus chlorine is more electronegative than hydrogen

the value of electronegativity depends upon the ionization potential and

electron affinity of the atom

in a polar covalent bond the shared pair of electrons is attracted by one of the atoms giving partial positive and negative charges to the two atoms

the tendency of an atom to attract electrons to itself when combined in a

compound is called electronegativity

for example in the molecule of hydrogen chloride electron pair is attracted more towards chlorine

thus chlorine is more electronegative than hydrogen

the value of electronegativity depends upon the ionization potential and

electron affinity of the atom

in a polar covalent bond the shared pair of electrons is attracted by one of the atoms giving partial positive and negative charges to the two atoms

small atoms attract electrons more than the large ones and are therefore more electronegative

for example in the molecule of hydrogen chloride electron pair is attracted more towards chlorine

thus chlorine is more electronegative than hydrogen

the value of electronegativity depends upon the ionization potential and

electron affinity of the atom

in a polar covalent bond the shared pair of electrons is attracted by one of the atoms giving partial positive and negative charges to the two atoms

small atoms attract electrons more than the large ones and are therefore more electronegative

low electronegativity is the characteristic of metals and high electronegativity is the characteristic of non-metals

thus chlorine is more electronegative than hydrogen

the value of electronegativity depends upon the ionization potential and

electron affinity of the atom

in a polar covalent bond the shared pair of electrons is attracted by one of the atoms giving partial positive and negative charges to the two atoms

small atoms attract electrons more than the large ones and are therefore more electronegative

low electronegativity is the characteristic of metals and high electronegativity is the characteristic of non-metals

electronegativity increases in going from left to right across the period

because atomic size decreases from left to right in a group

atomic size increases hence electronegativity decreases

in a polar covalent bond the shared pair of electrons is attracted by one of the atoms giving partial positive and negative charges to the two atoms

small atoms attract electrons more than the large ones and are therefore more electronegative

low electronegativity is the characteristic of metals and high electronegativity is the characteristic of non-metals

electronegativity increases in going from left to right across the period

because atomic size decreases from left to right in a group

atomic size increases hence electronegativity decreases

in a polar covalent bond the shared pair of electrons is attracted by one of the atoms giving partial positive and negative charges to the two atoms

small atoms attract electrons more than the large ones and are therefore more electronegative

low electronegativity is the characteristic of metals and high electronegativity is the characteristic of non-metals

electronegativity increases in going from left to right across the period

because atomic size decreases from left to right in a group

atomic size increases hence electronegativity decreases

in a polar covalent bond the shared pair of electrons is attracted by one of the atoms giving partial positive and negative charges to the two atoms

small atoms attract electrons more than the large ones and are therefore more electronegative

low electronegativity is the characteristic of metals and high electronegativity is the characteristic of non-metals

electronegativity increases in going from left to right across the period

because atomic size decreases from left to right in a group

atomic size increases hence electronegativity decreases

in a polar covalent bond the shared pair of electrons is attracted by one of the atoms giving partial positive and negative charges to the two atoms

small atoms attract electrons more than the large ones and are therefore more electronegative

low electronegativity is the characteristic of metals and high electronegativity is the characteristic of non-metals

electronegativity increases in going from left to right across the period

because atomic size decreases from left to right in a group

atomic size increases hence electronegativity decreases

in a polar covalent bond the shared pair of electrons is attracted by one of the atoms giving partial positive and negative charges to the two atoms

small atoms attract electrons more than the large ones and are therefore more electronegative

low electronegativity is the characteristic of metals and high electronegativity is the characteristic of non-metals

electronegativity increases in going from left to right across the period

because atomic size decreases from left to right in a group

A. Arsenic

B. Phosphorus

C. Antimony

D. Bismuth

Chalcogens

Halogens

Pnictogens

Noble gases

Pnictogens

Chalcogens

Halogens

Noble Gases

5

6

8

9

The total number of electrons in an atom

The number of electrons in the outermost shell

The number of electrons in the second shell

The number of protons in the outermost shell

4

5

6

7

31

5

15

4

Number of protons

Number of electrons

Number of valence electrons

Number of shells

4

5

6

7

1

2

3

4

31

5

15

4

31

5

15

4

Hi everyone welcome to Win Point online classes

in this session we are going to discuss some of the important topics from the chapter periodic classification of elements. Let's start the discussion

the first topic is valency what you meant by valency we already learned about valency in the previous classes

valency is the combining capacity of an actor the combining capacity of an element is known as valency

let's see how we can find valence of an electron. For example phosphorus the symbol of phosphorus is P

what is the atomic number of phosphorus. the atomic number

of phosphorus is 15 here we are writing atomic number of phosphorus is 15

in this session we are going to discuss some of the important topics from the chapter periodic classification of elements. Let's start the discussion

the first topic is valency what you meant by valency we already learned about valency in the previous classes

valency is the combining capacity of an actor the combining capacity of an element is known as valency

let's see how we can find valence of an electron. For example phosphorus the symbol of phosphorus is P

what is the atomic number of phosphorus. the atomic number

of phosphorus is 15 here we are writing atomic number of phosphorus is 15

how we can write the electronic configuration of this atom? yes it will be 2 8 5 in the outermost shell the outermost shell is

also known as valence shell

the first topic is valency what you meant by valency we already learned about valency in the previous classes

valency is the combining capacity of an actor the combining capacity of an element is known as valency

let's see how we can find valence of an electron. For example phosphorus the symbol of phosphorus is P

what is the atomic number of phosphorus. the atomic number

of phosphorus is 15 here we are writing atomic number of phosphorus is 15

how we can write the electronic configuration of this atom? yes it will be 2 8 5 in the outermost shell the outermost shell is

also known as valence shell

in the valence shell how many electrons are there are 5 electrons here you can see that there are 5 electrons in the

outermost shell

valency is the combining capacity of an actor the combining capacity of an element is known as valency

let's see how we can find valence of an electron. For example phosphorus the symbol of phosphorus is P

what is the atomic number of phosphorus. the atomic number

of phosphorus is 15 here we are writing atomic number of phosphorus is 15

how we can write the electronic configuration of this atom? yes it will be 2 8 5 in the outermost shell the outermost shell is

also known as valence shell

in the valence shell how many electrons are there are 5 electrons here you can see that there are 5 electrons in the

outermost shell

why atoms are participating in chemical reaction? atoms are participating in chemical reaction to complete the octet in the outermost shell

let's see how we can find valence of an electron. For example phosphorus the symbol of phosphorus is P

what is the atomic number of phosphorus. the atomic number

of phosphorus is 15 here we are writing atomic number of phosphorus is 15

how we can write the electronic configuration of this atom? yes it will be 2 8 5 in the outermost shell the outermost shell is

also known as valence shell

in the valence shell how many electrons are there are 5 electrons here you can see that there are 5 electrons in the

outermost shell

why atoms are participating in chemical reaction? atoms are participating in chemical reaction to complete the octet in the outermost shell

they need 8 electrons. if an atomis having 8 electrons in the outermost shell the atom will be stable here

the configuration is 2 8 5 the outermost shell is having 5 electron to complete the octet

how we can write the electronic configuration of this atom? yes it will be 2 8 5 in the outermost shell the outermost shell is

also known as valence shell

in the valence shell how many electrons are there are 5 electrons here you can see that there are 5 electrons in the

outermost shell

why atoms are participating in chemical reaction? atoms are participating in chemical reaction to complete the octet in the outermost shell

they need 8 electrons. if an atomis having 8 electrons in the outermost shell the atom will be stable here

the configuration is 2 8 5 the outermost shell is having 5 electron to complete the octet

phosphorus needs 3 electrons more then 3 is the valency the it is valency is the number of electrons required to complete the octet valency is 3

in the valence shell how many electrons are there are 5 electrons here you can see that there are 5 electrons in the

outermost shell

why atoms are participating in chemical reaction? atoms are participating in chemical reaction to complete the octet in the outermost shell

they need 8 electrons. if an atomis having 8 electrons in the outermost shell the atom will be stable here

the configuration is 2 8 5 the outermost shell is having 5 electron to complete the octet

phosphorus needs 3 electrons more then 3 is the valency the it is valency is the number of electrons required to complete the octet valency is 3

now we can go for the next example sodium. what is the atomic number of sodium the atomic number of sodium is 11

why atoms are participating in chemical reaction? atoms are participating in chemical reaction to complete the octet in the outermost shell

they need 8 electrons. if an atomis having 8 electrons in the outermost shell the atom will be stable here

the configuration is 2 8 5 the outermost shell is having 5 electron to complete the octet

phosphorus needs 3 electrons more then 3 is the valency the it is valency is the number of electrons required to complete the octet valency is 3

now we can go for the next example sodium. what is the atomic number of sodium the atomic number of sodium is 11

the quantification will be 2 8 1 right. how many electrons are there in the valence shell?

they need 8 electrons. if an atomis having 8 electrons in the outermost shell the atom will be stable here

the configuration is 2 8 5 the outermost shell is having 5 electron to complete the octet

phosphorus needs 3 electrons more then 3 is the valency the it is valency is the number of electrons required to complete the octet valency is 3

now we can go for the next example sodium. what is the atomic number of sodium the atomic number of sodium is 11

the quantification will be 2 8 1 right. how many electrons are there in the valence shell?

in the valence shell there is only one electron so it needs 7

electrons to complete the octet but no atom is going to give 7 electrons so the best idea is donate that electron

if the sodium is donating this one electron it will be having 2 8 8 electron and the outermost shell to complete the octet

phosphorus needs 3 electrons more then 3 is the valency the it is valency is the number of electrons required to complete the octet valency is 3

now we can go for the next example sodium. what is the atomic number of sodium the atomic number of sodium is 11

the quantification will be 2 8 1 right. how many electrons are there in the valence shell?

in the valence shell there is only one electron so it needs 7

electrons to complete the octet but no atom is going to give 7 electrons so the best idea is donate that electron

if the sodium is donating this one electron it will be having 2 8 8 electron and the outermost shell to complete the octet

sodium will donate 1 electron so it will be the valence will be 1 so we can define valency it is a number of electrons required to complete the octet

now we can go for the next example sodium. what is the atomic number of sodium the atomic number of sodium is 11

the quantification will be 2 8 1 right. how many electrons are there in the valence shell?

in the valence shell there is only one electron so it needs 7

electrons to complete the octet but no atom is going to give 7 electrons so the best idea is donate that electron

if the sodium is donating this one electron it will be having 2 8 8 electron and the outermost shell to complete the octet

sodium will donate 1 electron so it will be the valence will be 1 so we can define valency it is a number of electrons required to complete the octet

or it is a number of electron donated by an atom to complete the octet

the quantification will be 2 8 1 right. how many electrons are there in the valence shell?

in the valence shell there is only one electron so it needs 7

electrons to complete the octet but no atom is going to give 7 electrons so the best idea is donate that electron

if the sodium is donating this one electron it will be having 2 8 8 electron and the outermost shell to complete the octet

sodium will donate 1 electron so it will be the valence will be 1 so we can define valency it is a number of electrons required to complete the octet

or it is a number of electron donated by an atom to complete the octet

some atom will donate electron and some atom will accept electron. the valency of an atom is depending upon the number of electrons in the outermost shell needs

in the valence shell there is only one electron so it needs 7

electrons to complete the octet but no atom is going to give 7 electrons so the best idea is donate that electron

if the sodium is donating this one electron it will be having 2 8 8 electron and the outermost shell to complete the octet

sodium will donate 1 electron so it will be the valence will be 1 so we can define valency it is a number of electrons required to complete the octet

or it is a number of electron donated by an atom to complete the octet

some atom will donate electron and some atom will accept electron. the valency of an atom is depending upon the number of electrons in the outermost shell needs

valency depends on the number of electrons in the outermost shell. so what will be the change of this valency along the group and along the period let's check that

now we are going to discuss the variation of balance down the group and across the period

sodium will donate 1 electron so it will be the valence will be 1 so we can define valency it is a number of electrons required to complete the octet

or it is a number of electron donated by an atom to complete the octet

some atom will donate electron and some atom will accept electron. the valency of an atom is depending upon the number of electrons in the outermost shell needs

valency depends on the number of electrons in the outermost shell. so what will be the change of this valency along the group and along the period let's check that

now we are going to discuss the variation of balance down the group and across the period

here you can see the periodic table there are 18 groups and seven periods

or it is a number of electron donated by an atom to complete the octet

some atom will donate electron and some atom will accept electron. the valency of an atom is depending upon the number of electrons in the outermost shell needs

valency depends on the number of electrons in the outermost shell. so what will be the change of this valency along the group and along the period let's check that

now we are going to discuss the variation of balance down the group and across the period

here you can see the periodic table there are 18 groups and seven periods

there are 18 groups and seven periods. we are going to consider the first group elements these are the first group elements what will be the valency of hydrogen?

some atom will donate electron and some atom will accept electron. the valency of an atom is depending upon the number of electrons in the outermost shell needs

valency depends on the number of electrons in the outermost shell. so what will be the change of this valency along the group and along the period let's check that

now we are going to discuss the variation of balance down the group and across the period

here you can see the periodic table there are 18 groups and seven periods

there are 18 groups and seven periods. we are going to consider the first group elements these are the first group elements what will be the valency of hydrogen?

some atom will donate electron and some atom will accept electron. the valency of an atom is depending upon the number of electrons in the outermost shell needs

valency depends on the number of electrons in the outermost shell. so what will be the change of this valency along the group and along the period let's check that

now we are going to discuss the variation of balance down the group and across the period

here you can see the periodic table there are 18 groups and seven periods

there are 18 groups and seven periods. we are going to consider the first group elements these are the first group elements what will be the valency of hydrogen?

some atom will donate electron and some atom will accept electron. the valency of an atom is depending upon the number of electrons in the outermost shell needs

hydrogen; the group number of hydrogen is one do you know how we can find group number of an atom? first we need to write the electronic configuration after that we need to check the number of electrons in the valence shell

if you don't know to find group and period of an atom you can

click on the link above then you can learn that

here you can see the periodic table there are 18 groups and seven periods

there are 18 groups and seven periods. we are going to consider the first group elements these are the first group elements what will be the valency of hydrogen?

some atom will donate electron and some atom will accept electron. the valency of an atom is depending upon the number of electrons in the outermost shell needs

hydrogen; the group number of hydrogen is one do you know how we can find group number of an atom? first we need to write the electronic configuration after that we need to check the number of electrons in the valence shell

if you don't know to find group and period of an atom you can

click on the link above then you can learn that

again first we will write the electronic configuration then we will check the outermost electron if the number of electrons in the outermost shell is 1 the group will be 1

there are 18 groups and seven periods. we are going to consider the first group elements these are the first group elements what will be the valency of hydrogen?

some atom will donate electron and some atom will accept electron. the valency of an atom is depending upon the number of electrons in the outermost shell needs

hydrogen; the group number of hydrogen is one do you know how we can find group number of an atom? first we need to write the electronic configuration after that we need to check the number of electrons in the valence shell

if you don't know to find group and period of an atom you can

click on the link above then you can learn that

again first we will write the electronic configuration then we will check the outermost electron if the number of electrons in the outermost shell is 1 the group will be 1

hydrogen lithium sodium all these elements are in Group 1. first group elements so all shells all atoms are having same number of valence electron one electron

some atom will donate electron and some atom will accept electron. the valency of an atom is depending upon the number of electrons in the outermost shell needs

hydrogen; the group number of hydrogen is one do you know how we can find group number of an atom? first we need to write the electronic configuration after that we need to check the number of electrons in the valence shell

if you don't know to find group and period of an atom you can

click on the link above then you can learn that

again first we will write the electronic configuration then we will check the outermost electron if the number of electrons in the outermost shell is 1 the group will be 1

hydrogen lithium sodium all these elements are in Group 1. first group elements so all shells all atoms are having same number of valence electron one electron

hydrogen in the outermost shell there will be one electron. lithium in the outermost shell there will be one electron

hydrogen; the group number of hydrogen is one do you know how we can find group number of an atom? first we need to write the electronic configuration after that we need to check the number of electrons in the valence shell

if you don't know to find group and period of an atom you can

click on the link above then you can learn that

again first we will write the electronic configuration then we will check the outermost electron if the number of electrons in the outermost shell is 1 the group will be 1

hydrogen lithium sodium all these elements are in Group 1. first group elements so all shells all atoms are having same number of valence electron one electron

hydrogen in the outermost shell there will be one electron. lithium in the outermost shell there will be one electron

sodium in the outermost shell there will be one electron because these elements are in first group what will be the valency of hydrogen it will be 1

what will be the valency of lithium it will be 1; what will be the valency of sodium, it will be 1.

again first we will write the electronic configuration then we will check the outermost electron if the number of electrons in the outermost shell is 1 the group will be 1

hydrogen lithium sodium all these elements are in Group 1. first group elements so all shells all atoms are having same number of valence electron one electron

hydrogen in the outermost shell there will be one electron. lithium in the outermost shell there will be one electron

sodium in the outermost shell there will be one electron because these elements are in first group what will be the valency of hydrogen it will be 1

what will be the valency of lithium it will be 1; what will be the valency of sodium, it will be 1.

so down the group the valency is not changing valency remains same because same number of electrons in the valence shell; same number of electrons in the outermost shell

hydrogen lithium sodium all these elements are in Group 1. first group elements so all shells all atoms are having same number of valence electron one electron

hydrogen in the outermost shell there will be one electron. lithium in the outermost shell there will be one electron

sodium in the outermost shell there will be one electron because these elements are in first group what will be the valency of hydrogen it will be 1

what will be the valency of lithium it will be 1; what will be the valency of sodium, it will be 1.

so down the group the valency is not changing valency remains same because same number of electrons in the valence shell; same number of electrons in the outermost shell

now we can consider the second period elements. these are the second period elements lithium beryllium boron

carbon nitrogen oxygen fluorine neon

hydrogen in the outermost shell there will be one electron. lithium in the outermost shell there will be one electron

sodium in the outermost shell there will be one electron because these elements are in first group what will be the valency of hydrogen it will be 1

what will be the valency of lithium it will be 1; what will be the valency of sodium, it will be 1.

so down the group the valency is not changing valency remains same because same number of electrons in the valence shell; same number of electrons in the outermost shell

now we can consider the second period elements. these are the second period elements lithium beryllium boron

carbon nitrogen oxygen fluorine neon

what is the group number of lithium one right? the group number of lithium is 1 what is the period number of lithium 2. it is second period element which means lithium is having one electron in the outermost shell. the valency is one.

sodium in the outermost shell there will be one electron because these elements are in first group what will be the valency of hydrogen it will be 1

what will be the valency of lithium it will be 1; what will be the valency of sodium, it will be 1.

so down the group the valency is not changing valency remains same because same number of electrons in the valence shell; same number of electrons in the outermost shell

now we can consider the second period elements. these are the second period elements lithium beryllium boron

carbon nitrogen oxygen fluorine neon

what is the group number of lithium one right? the group number of lithium is 1 what is the period number of lithium 2. it is second period element which means lithium is having one electron in the outermost shell. the valency is one.

what about beryllium? period number is two. there is no change in the number of shell. the group number of lidium is one group number of beryllium is 2

what will be the valency of lithium it will be 1; what will be the valency of sodium, it will be 1.

so down the group the valency is not changing valency remains same because same number of electrons in the valence shell; same number of electrons in the outermost shell

now we can consider the second period elements. these are the second period elements lithium beryllium boron

carbon nitrogen oxygen fluorine neon

what is the group number of lithium one right? the group number of lithium is 1 what is the period number of lithium 2. it is second period element which means lithium is having one electron in the outermost shell. the valency is one.

what about beryllium? period number is two. there is no change in the number of shell. the group number of lidium is one group number of beryllium is 2

which means in the outermost shell there are two electrons. the valence is two. it is going to donate these two electron so

valancy is 2

so down the group the valency is not changing valency remains same because same number of electrons in the valence shell; same number of electrons in the outermost shell

now we can consider the second period elements. these are the second period elements lithium beryllium boron

carbon nitrogen oxygen fluorine neon

what is the group number of lithium one right? the group number of lithium is 1 what is the period number of lithium 2. it is second period element which means lithium is having one electron in the outermost shell. the valency is one.

what about beryllium? period number is two. there is no change in the number of shell. the group number of lidium is one group number of beryllium is 2

which means in the outermost shell there are two electrons. the valence is two. it is going to donate these two electron so

valancy is 2

what about boron? boron is in thirteenth group thirteenth group, means the number of electrons in the outermost shell is three. the valence will be three.

now we can consider the second period elements. these are the second period elements lithium beryllium boron

carbon nitrogen oxygen fluorine neon

what is the group number of lithium one right? the group number of lithium is 1 what is the period number of lithium 2. it is second period element which means lithium is having one electron in the outermost shell. the valency is one.

what about beryllium? period number is two. there is no change in the number of shell. the group number of lidium is one group number of beryllium is 2

which means in the outermost shell there are two electrons. the valence is two. it is going to donate these two electron so

valancy is 2

what about boron? boron is in thirteenth group thirteenth group, means the number of electrons in the outermost shell is three. the valence will be three.

what about carbon? carbon is in 14th group fourteenth group means the number of electrons in the outermost shell is four which means the valency is four

what is the group number of lithium one right? the group number of lithium is 1 what is the period number of lithium 2. it is second period element which means lithium is having one electron in the outermost shell. the valency is one.

what about beryllium? period number is two. there is no change in the number of shell. the group number of lidium is one group number of beryllium is 2

which means in the outermost shell there are two electrons. the valence is two. it is going to donate these two electron so

valancy is 2

what about boron? boron is in thirteenth group thirteenth group, means the number of electrons in the outermost shell is three. the valence will be three.

what about carbon? carbon is in 14th group fourteenth group means the number of electrons in the outermost shell is four which means the valency is four

what about nitrogen nitrogen is in 15th group number of electrons in the outermost shell is five if the electrons

number of electrons in the outermost shell is five; they are going to accept three electron to complete octet

what about beryllium? period number is two. there is no change in the number of shell. the group number of lidium is one group number of beryllium is 2

which means in the outermost shell there are two electrons. the valence is two. it is going to donate these two electron so

valancy is 2

what about boron? boron is in thirteenth group thirteenth group, means the number of electrons in the outermost shell is three. the valence will be three.

what about carbon? carbon is in 14th group fourteenth group means the number of electrons in the outermost shell is four which means the valency is four

what about nitrogen nitrogen is in 15th group number of electrons in the outermost shell is five if the electrons

number of electrons in the outermost shell is five; they are going to accept three electron to complete octet

if it is more than four; the atoms are going to accept electron here. nitrogen is having five electron it is in 15th group.

five electrons in the outermost shell which means the nitrogen is going to accept three electrons to complete the octet

what about boron? boron is in thirteenth group thirteenth group, means the number of electrons in the outermost shell is three. the valence will be three.

what about carbon? carbon is in 14th group fourteenth group means the number of electrons in the outermost shell is four which means the valency is four

what about nitrogen nitrogen is in 15th group number of electrons in the outermost shell is five if the electrons

number of electrons in the outermost shell is five; they are going to accept three electron to complete octet

if it is more than four; the atoms are going to accept electron here. nitrogen is having five electron it is in 15th group.

five electrons in the outermost shell which means the nitrogen is going to accept three electrons to complete the octet

the valency is three valency of lithium is one; valency of Beryllium means two. valency of boron is three. valency of

carbon is four. valency of nitrogen is three so balance is increasing across the period up to four.

what about carbon? carbon is in 14th group fourteenth group means the number of electrons in the outermost shell is four which means the valency is four

what about nitrogen nitrogen is in 15th group number of electrons in the outermost shell is five if the electrons

number of electrons in the outermost shell is five; they are going to accept three electron to complete octet

if it is more than four; the atoms are going to accept electron here. nitrogen is having five electron it is in 15th group.

five electrons in the outermost shell which means the nitrogen is going to accept three electrons to complete the octet

the valency is three valency of lithium is one; valency of Beryllium means two. valency of boron is three. valency of

carbon is four. valency of nitrogen is three so balance is increasing across the period up to four.

after that the valence is decreasing now we can we can check the valency of oxygen. oxygen is in 16th group sixteenth group means the number of electrons in the outermost shell is six.

what about nitrogen nitrogen is in 15th group number of electrons in the outermost shell is five if the electrons

number of electrons in the outermost shell is five; they are going to accept three electron to complete octet

if it is more than four; the atoms are going to accept electron here. nitrogen is having five electron it is in 15th group.

five electrons in the outermost shell which means the nitrogen is going to accept three electrons to complete the octet

the valency is three valency of lithium is one; valency of Beryllium means two. valency of boron is three. valency of

carbon is four. valency of nitrogen is three so balance is increasing across the period up to four.

after that the valence is decreasing now we can we can check the valency of oxygen. oxygen is in 16th group sixteenth group means the number of electrons in the outermost shell is six.

six electron in the last shell; two electrons to complete the

octet. they are going to accept two electron valancy is 2

if it is more than four; the atoms are going to accept electron here. nitrogen is having five electron it is in 15th group.

five electrons in the outermost shell which means the nitrogen is going to accept three electrons to complete the octet

the valency is three valency of lithium is one; valency of Beryllium means two. valency of boron is three. valency of

carbon is four. valency of nitrogen is three so balance is increasing across the period up to four.

after that the valence is decreasing now we can we can check the valency of oxygen. oxygen is in 16th group sixteenth group means the number of electrons in the outermost shell is six.

six electron in the last shell; two electrons to complete the

octet. they are going to accept two electron valancy is 2

what about fluorine? fluorine is 17th group element 17th group; means outermost electron is 7; one electron to complete the octet valence will be 1

what about neon? neon is in 18th group. 18th group means the

number of electrons in the outermost shell is 8, so the valency is 0

the valency is three valency of lithium is one; valency of Beryllium means two. valency of boron is three. valency of

carbon is four. valency of nitrogen is three so balance is increasing across the period up to four.

after that the valence is decreasing now we can we can check the valency of oxygen. oxygen is in 16th group sixteenth group means the number of electrons in the outermost shell is six.

six electron in the last shell; two electrons to complete the

octet. they are going to accept two electron valancy is 2

what about fluorine? fluorine is 17th group element 17th group; means outermost electron is 7; one electron to complete the octet valence will be 1

what about neon? neon is in 18th group. 18th group means the

number of electrons in the outermost shell is 8, so the valency is 0

so valence is increasing up to 4 and it is decreasing to zero now we can write the same valency

after that the valence is decreasing now we can we can check the valency of oxygen. oxygen is in 16th group sixteenth group means the number of electrons in the outermost shell is six.

six electron in the last shell; two electrons to complete the

octet. they are going to accept two electron valancy is 2

what about fluorine? fluorine is 17th group element 17th group; means outermost electron is 7; one electron to complete the octet valence will be 1

what about neon? neon is in 18th group. 18th group means the

number of electrons in the outermost shell is 8, so the valency is 0

so valence is increasing up to 4 and it is decreasing to zero now we can write the same valency

valency remains the same down the group valency increases up to 4 then decreases to 0 in moving left to right along a period

six electron in the last shell; two electrons to complete the

octet. they are going to accept two electron valancy is 2

what about fluorine? fluorine is 17th group element 17th group; means outermost electron is 7; one electron to complete the octet valence will be 1

what about neon? neon is in 18th group. 18th group means the

number of electrons in the outermost shell is 8, so the valency is 0

so valence is increasing up to 4 and it is decreasing to zero now we can write the same valency

valency remains the same down the group valency increases up to 4 then decreases to 0 in moving left to right along a period

six electron in the last shell; two electrons to complete the

octet. they are going to accept two electron valancy is 2

what about fluorine? fluorine is 17th group element 17th group; means outermost electron is 7; one electron to complete the octet valence will be 1

what about neon? neon is in 18th group. 18th group means the

number of electrons in the outermost shell is 8, so the valency is 0

so valence is increasing up to 4 and it is decreasing to zero now we can write the same valency

valency remains the same down the group valency increases up to 4 then decreases to 0 in moving left to right along a period

six electron in the last shell; two electrons to complete the

octet. they are going to accept two electron valancy is 2

what about fluorine? fluorine is 17th group element 17th group; means outermost electron is 7; one electron to complete the octet valence will be 1

what about neon? neon is in 18th group. 18th group means the

number of electrons in the outermost shell is 8, so the valency is 0

so valence is increasing up to 4 and it is decreasing to zero now we can write the same valency

valency remains the same down the group valency increases up to 4 then decreases to 0 in moving left to right along a period

six electron in the last shell; two electrons to complete the

octet. they are going to accept two electron valancy is 2

what about fluorine? fluorine is 17th group element 17th group; means outermost electron is 7; one electron to complete the octet valence will be 1

what about neon? neon is in 18th group. 18th group means the

number of electrons in the outermost shell is 8, so the valency is 0

so valence is increasing up to 4 and it is decreasing to zero now we can write the same valency

valency remains the same down the group valency increases up to 4 then decreases to 0 in moving left to right along a period

six electron in the last shell; two electrons to complete the

octet. they are going to accept two electron valancy is 2

what about fluorine? fluorine is 17th group element 17th group; means outermost electron is 7; one electron to complete the octet valence will be 1