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electrons config

Total questions: 108

Worksheet time: 3hrs 37mins

Name
Class
Date
1.

What are valence electrons?

a)

The total number of electrons in an atom

b)

The number of electrons in the outermost shell

c)

The number of electrons in the second shell

d)

The number of protons in the outermost shell

2.

What are valence electrons?

a)

The total number of electrons in an atom

b)

The number of electrons in the outermost shell

c)

The number of electrons in the second shell

d)

The number of protons in the outermost shell

3.

Which of these is incorrect?

a)
b)
4.

what is the valence electrons for carbon with 6 electrons? 1s2 2s2 2p2

a)

2

b)

6

c)

4

d)

3

5.

what is the valence electrons for phosphorus in group 15?

a)

15

b)

5

c)

3

d)

2

6.

calcium is in group 2 of the periodic table. what is the valence electrons?

a)

12

b)

2

c)

18

d)

0

7.

nitrogen has 7 electrons. what is the electron configuration?

a)

1s2 2s1 2p4

b)

1s2 2s2 2p3

c)

1s1 2s1 2p5

d)

1s2 2s5

8.

fluorine has 9 electrons. what is the electronic configuration?

a)

1s2 2s2 2p1 3s4

b)

1s2 2p6 3s1

c)

1s1 2s3 3p5

d)

1s2 2s2 2p5

9.

what is the valence electrons of an element in group 17?

a)

7

b)

17

c)

1

d)

5

10.

which element has the highest valence?

a)

1s2 2s2

b)

1s2 2s2 2p1

c)

1s2 2s2 2p6 3s2

d)

1s2 2s2 2p5

11.

How many valence electrons does Hydrogen Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

12.

How many valence electrons does Hydrogen Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

13.

How many valence electrons does Nitrogen Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

14.

How many valence electrons does Magnesium Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

15.

How many valence electrons does Argon Have?

a)

4 Valence electron

b)

5 Valence electron

c)

6 Valence electron

d)

7 Valence electron

e)

8 Valence electron

16.

Chlorine ( Cl) has _________ valence electrons.

a)

3

b)

5

c)

7

d)

8

17.

Ga has _______ valence electrons.

a)

8

b)

4

c)

3

d)

1

18.

All of the following are chemical families EXCEPT ___.

a)

Gases

b)

Halogens

c)

Noble gases

d)

Alkali metals

19.

What is the name of this chemical family?

a)

Noble gases

b)

representative elements

c)

alkali metals

d)

alkali earth metals

20.

Which of these is not a noble gas?

a)

Helium

b)

Nitrogen

c)

Argon

d)

Krypton

21.

Which of the following is NOT an alkali metal?

a)

Li

b)

K

c)

Cl

d)

Cs

22.

What is another name for the elements in group 17?

a)

The Halogens

b)

The Oxides

c)

The Noble Gases

d)

The Alkali Metals

23.

Gold (Au) is what kind of metal?

a)

alkaline earth

b)

alkali

c)

transition

d)

lanthanide

24.

The majority of elements on the periodic table are

a)

man made

b)

nonmetals

c)

metals

d)

gases

25.

Which group have properties similar to both metals and nonmetals?

a)

Halogens

b)

Metalloids

c)

Alkaline Earth Metals

d)

Noble Gases

26.

The periodic table is organized in horizontal rows called...

a)

Groups

b)

Periods

c)

Families

d)

Chemical Symbols

27.

The vertical columns of the periodic table are called...

a)

Periods

b)

Families

c)

Chemical Symbols

d)

Groups

28.

The letter, C, is a ... of carbon.

a)

Name

b)

Nickname

c)

Chemical Symbol

d)

Pseudonym

29.

Find these groups: Locate Lanthanides and Actinides. Select the correct answers. 

a)
b)
c)
d)
30.

Find this family: This family contains nitrogen and phosphorus.

a)
b)
c)
d)
31.

Find this family: This family contains very reactive nonmetals like fluorine and chlorine.

a)
b)
c)
d)
32.

What element is circled?

a)

Halogen

b)

Helium

c)

Hydrogen

d)

Hallium

33.

Which letter is the Metalloids?

a)

A

b)

B

c)

C

d)

D

e)

E

34.

What is the name of group number 1?

a)

halogens

b)

noble gases

c)

alkali metals

d)

alkaline earth metals

35.

What is the name of group number 1?

a)

halogens

b)

noble gases

c)

alkali metals

d)

alkaline earth metals

36.

A row on the Periodic Table of Elements

a)

family

b)

period

c)

row

d)

isotope

37.

Which element is found in group 2, period 6?

a)

Oxygen (O)

b)

Barium (Ba)

c)

Selenium (Se)

d)

Carbon (C)

38.

Which halogen is found in period 4?

a)

Krypton (Kr)

b)

Xenon (Xe)

c)

Bromine (Br)

d)

Iodine (I)

39.

a unique number for each element that equals the number of protons in an atom of that element

a)

element name

b)

element symbol

c)

atomic number

d)

atomic mass

40.

Name this group: These elements, also known as inert gases, tend to be nonreactive.

a)

Halogen family

b)

Noble gases

c)

Carbon family

d)

Nitrogen family

41.
Which of the following atomic symbols for bromine is written correctly?
a)
bR
b)
BR
c)
Br
d)
br
42.
Elements which are shiny, conduct electricity and heat are called
a)
metal
b)
nonmetal
c)
metalloid
d)
nonexistent
43.
Which is a halogen?
a)
Helium
b)
Chlorine
c)
Oxygen
d)
Neptune
44.
Which is an alkali metal?
a)
Magnesium
b)
Iron
c)
Sodium
d)
Europium
45.

What electron configuration matches an oxygen atom?

a)

1s22s22p63s2, 3p64s23d104p5

b)

1s22s22p4

c)

1s22s22p6

d)

1s22s22p63s23p64s23d1

46.

Identify the Electron Configuration for Aluminum (Al)

a)

1s2 2s2 2p6 3s2 3p1

b)

1s2 2s2 2p6 3s2 3p3

c)

1s2 2s2 2p6 3s2 4p1

47.

Valence electrons are located...

a)

inside the nucleus

b)

in outer space

c)

on the outermost orbit of an atom

48.
a)

10

b)

2

c)

8

d)

18

49.
a)

14

b)

4

c)

3

d)

28

50.
How many electrons can the first energy level hold?
a)
1
b)
2
c)
8
d)
0
51.
There are 4 different types of subshells s,p,d,f
a)
true
b)
false
52.

Energy levels are denoted by:

a)

letters

b)

numbers

c)

a combination of letters and numbers

d)

subscripts

53.

Each row on the periodic table represents:

a)

an energy level

b)

a sublevel

c)

an electron

d)

an orbital

54.

The vertical (up and down) columns in the Periodic Table are called

a)

groups

b)

towers

c)

periods

d)

atomic numbers

55.
Which group of the periodic table is composed of inert (not reactive)  gases?
a)
alkali metals
b)
alkaline earth metals
c)
halogens
d)
noble gases
56.
Which is an alkali metal?
a)
Magnesium
b)
Iron
c)
Sodium
d)
Europium
57.
Which is a halogen?
a)
Helium
b)
Chlorine
c)
Oxygen
d)
Neptune
58.
Elements in a ..................have similar chemical properties.  
a)
period
b)
group
c)
row
59.

Name this group: These metals are the most reactive.

a)
b)
c)
d)
60.

I am a metal


I am in group 2


I am in period 6


I am…

a)

Mo

b)

Re

c)

S

d)

Ba

61.

I am a nonmetal


I am in period 2


I am in group 16/6A

a)

Ba

b)

Si

c)

Ba

d)

O

62.

Find an element with similar chemical properties to Barium (Ba).

a)

Ca an Ra, because they are in the same group and have similar chemical properties.

b)

Cs and La, b/c they are in the same period number.

c)

Ca and Y, b/c they are 90 degree angle and have similiar properties.

63.

What is the position of an element in the periodic table if its electron configuration is 1s2 2s2 2p6 3s2 3p5?

a)

Group 1A

b)

Group 2A

c)

Group 5A

d)

Group 7A

64.

Why do electrons enter the 4s orbital before entering the 3d orbital? 

a)

because the 3d orbital is at a lower energy level

b)

because both the 4s and 3d orbitals are at the same energy level

c)

because the 4s orbital is at a lower energy level

d)

because the 4s orbital is at a higher energy level

65.

Name the particles in the space around the nucleus

(a)  

66.

A particular atom has 8 protons, 8 electrons and 9 neutrons. State its atomic number.

(a)  

67.

What is the electric charge of a proton?

a)

positive

b)

negative

c)

neutral

d)

not sure

68.

What is the overall charge of an atom?

a)

postive

b)

negative

c)

neutral

d)

not sure

69.

Valence electrons are...

a)

electrons on the innermost shell

b)

electrons on the outermost shell

c)

electrons in the middle shell

d)

electrons in an atom

70.

Which of the following is found in period 3?

a)

Hydrogen

b)

Beryllium

c)

Aluminium

d)

Arsenic

71.

Which of the following element is found in group 2?

a)

Hydrogen

b)

Helium

c)

Lithium

d)

Beryllium

72.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
73.
What atom matches this electron configuration?
1s22s22p63s2
a)
Neon
b)
Magnesium
c)
Aluminum
d)
Potassium
74.
What electron configuration matches an oxygen atom?
a)
1s22s22p63s2, 3p64s23d104p5
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p64s23d1
75.
How many electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
4
76.
How many electrons can the first energy level hold?
a)
1
b)
2
c)
8
d)
0
77.
The electron configuration of an atom is 1s22s22p6.  The number of electrons in the atom is 
a)
3
b)
6
c)
8
d)
10
78.
What do you start electron configuration with?
a)
1s2
b)
1d10
c)
1f14
d)
1p6
79.
What is this element?
1s22s22p63s2
a)
Neon
b)
Magnesium
c)
Aluminum
d)
Potassium
80.
Which electron configuration belongs to Chlorine (Cl)?
a)
1s2 2s2 2p6 3s2 3p5
b)
1s2 2s2 2p6 3s2 3p6
c)
1s2 2s2 2p6 3s2 3p7
81.
There are 4 different types of subshells s,p,d,f
a)
true
b)
false
82.
Which electron configuration belongs to Copper (Cu)?
a)
1s2 2s2 2p6 3s2 3p6 4s2 3d8
b)
1s2 2s2 2p6 3s2 3p6 4s2 3d9
c)
1s2 2s2 2p6 3s2 3p6 4s2 3d10
83.
Identify the Electron Configuration for Aluminum (Al)
a)
1s2 2s2 2p6 3s2 3p1
b)
1s2 2s2 2p6 3s2 3p3
c)
1s2 2s2 2p6 3s2 4p1
84.

How many electrons can the p sublevel hold?

a)
8
b)

6

c)
2
d)
4
85.
What is the noble gas shorthand electron for Sulfur atom?
a)
[Ar] 3p4
b)
[He] 3s23p4
c)
[Ne] 3s23p4
d)
[Na] 3s23p4
86.
This orbital diagram represents:  
a)
C
b)
B
c)
N
d)
O
87.
How many electrons can the d sublevel hold?
a)
8
b)
10
c)
2
d)
4
88.

Ionisation energy is ___________.

a)

maximum energy required to remove 1 electron from 1 mol of gaseous atom

b)

minimum energy required to remove 1 electron from 1 mol of gaseous atom

c)

first ionisation energy

d)

second ionisation energy

89.

The equation for the first ionisation energy of a sodium atom is:

a)

Na (g) -> Na+ (g) + e- Pick this answer

b)

Na+ (g) -> Na2+ (g) + e-

c)

Na (s) -> Na+ (g) + e-

d)

Na+ (g) + e- -> Na (g)

90.

Which of the following has a lowest first ionisation energy?

a)

Sodium (Na)

b)

Magnesium (Mg)

c)

Chlorine (Cl)

d)

Argon (Ar)

91.

What is the name of the smallest atom?

(a)  

92.
The atom with the largest atomic radius in Group 18 is - 
a)
Ar
b)
He
c)
Kr
d)
Rn
93.
As you move down a group, atomic radius increases because - 
a)
you add more and more neutrons
b)
you add more and more protons
c)
you add more and more shells (energy levels)
d)
you add more atomic mass
94.
The atom with the largest atomic radius in Period 4 (row 4) is - 
a)
K
b)
Kr
c)
Fe
d)
Fe
95.
Francium (Fr) has the lowest ionization energy in Group 1 because - 
a)
it has the smallest number of valence electrons
b)
it has the greatest atomic mass
c)
it has the greatest number of protons, so it attracts its electrons the strongest
d)
its 1 valence electron is very far from the nucleus, so little energy is needed to remove it
96.
The element with the smallest ionization energy in Period 6 is - 
a)
Rn
b)
Cs
c)
Os
d)
Tm
97.

Of the halogens, which has the smallest radius?

a)

F

b)

Br

c)

He

d)

At

98.

Which of the following will have a lower ionization energy than Scandium (Sc)?

a)

Helium (He)

b)

Titanium (Ti)

c)

Calcium (Ca)

d)

Magnesium (Mg)

99.

Which of the following will have a higher electronegativity than arsenic (As)?

a)

Carbon (C)

b)

Neon (Ne)

c)

Antimony (Sb)

d)

Germanium (Ge)

100.

Which of the following halogens has the greatest electronegativity?

a)

Chlorine (Cl)

b)

Bromine (Br)

c)

Iodine (I)

d)

Astatine (At)

101.

Which group of elements has the lowest ionization energies?

a)

Alkali Metals (Group 1)

b)

Alkaline Earth Metals (Group 2)

c)

Halogens (Group 17)

d)

Noble Gases (Group 18)

102.

What is the amount of energy required to remove an electron from an atom?

a)

atomic energy

b)

ionization energy

c)

ionic energy

d)

electron energy

103.

What is one-half the distance between the nuclei of identical atoms that are bonded together?

a)

atomic radius

b)

atomic diameter

c)

atomic width

d)

atomic length

104.

What is a measure of the tendency of an atom to attract a bonding pair of electrons when the atom is in a compound?

a)

ionization energy

b)

electropositivity

c)

electronegativity

d)

electron energy

105.

What is a positively-charged ion which forms when an atom loses electrons?

a)

atom

b)

ion

c)

cation

d)

anion

106.

What is a negatively-charged ion which forms when an atom gains electrons?

a)

cation

b)

anion

c)

electron

d)

ion

107.

What is a vertical (up and down) column in the periodic table?

a)

group or family

b)

period

c)

periodic law

d)

octet rule

108.
Which atom has the largest atomic radius?
a)
potassium
b)
rubidium 
c)
francium
d)
cesium

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