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Electron Configuration, Bohr Models, Trends, Octet Rule, Ions

Total questions: 147

Worksheet time: 4hrs 35mins

Name
Class
Date
1.
Question Image

Match the parts of the electron configuration to what it represents.

a)

1

1.

period (energy level)

b)

s

2.

block (orbital)

c)

2

3.

number of electrons in the orbital

2.

This element's electron configuration got mixed up! What element is this?

x6 x2 x10 x6 x6 x2 x2 x2 x9 x2

(a)  

3.

Match the element to it's noble gas notation:

a)

krypton

1.

[Kr]

b)

silicon

2.

[Ne] 3s2 3p2

c)

strontium

3.

[Kr] 5s2

d)

copper

4.

[Ar] 4s2 3d9

4.
Each column in the periodic table is called a _________ .
a)
period
b)
group
c)
cluster
d)
unit
5.

Put in order from biggest to smallest (decreasing size)

a)

Calcium

b)

Iron

c)

Zinc

d)

Bromine

e)

Krypton

1)
2)
3)
4)
5)
6.

Which of the following atoms would have the largest radius?

a)

chlorine

b)

silicon

c)

sodium

d)

argon

7.

Put in order from biggest to smallest (decreasing size)

a)

Calcium

b)

Iron

c)

Zinc

d)

Bromine

e)

Krypton

1)
2)
3)
4)
5)
8.

Which of the following has the largest electronegativity value?

a)

neon

b)

fluorine

c)

carbon

d)

lithium

9.

Which has the greater electronegativity Cl or Al?

a)
Cl
b)
Al
10.

Which element in Period 3 has the highest electronegativity?

a)

Sodium (Na)

b)

Chlorine (Cl)

c)

Aluminum (Al)

d)

Argon (Ar)

11.

Which of the following elements has the smallest atomic radius in Group 1?

a)

Hydrogen (H)

b)

Lithium (Li)

c)

Sodium (Na)

d)

Potassium (K)

12.
The atom with the largest atomic radius in Group 18 is - 
a)
Ar
b)
He
c)
Kr
d)
Rn
13.
The atom with the largest atomic radius in Period 4 (row 4) is - 
a)
K
b)
Kr
c)
Fe
d)
Fe
14.
The element with the smallest ionization energy in Period 6 is - 
a)
Rn
b)
Cs
c)
Os
d)
Tm
15.
The energy required to remove electrons is the definition of: 
a)
Electronegativity
b)
Atomic Number
c)
Atomic Radius
d)
Ionization
16.
Electronegativity is...
a)
the ability of an atom to attract/ accept electrons
b)
the ability of an atom to lose electrons
c)
the energy required to remove an electron from a specific atom
d)
how easy it is to make friends. 
17.
Which has the greater Electronegativity: 
N or C?
a)
C
b)
N
18.
Electronegativity is...
a)
how good an atom is at attracting electrons
b)
the ability of an atom to lose electrons
c)
the energy required to remove an electron from a specific atom
d)
how easy it is to make friends. 
19.
Atoms that have a high electronegativity, _______________.
a)
give up their electrons more easily.
b)
hold on to their electrons more tightly.
c)
have more electron shells.
20.
Which of the following will have a higher electronegativity than arsenic (As)?
a)
Carbon (C)
b)
Neon (Ne)
c)
Antimony (Sb)
d)
Germanium (Ge)
21.
What term is used to describe "an atom's tendency to attract electrons to itself when is is chemically combined with another element"
a)
electronation
b)
electron affinity
c)
electronegativity
d)
electrolysis
22.
What term is used to describe "The energy required to remove an electron from gaseous atoms"
a)
excitation energy
b)
ionization energy
c)
polarization energy
d)
electrolytic energy 
23.
What term is used to describe "A measure of the size of an atom"
a)
chemical reactivity
b)
atomic radius
c)
energy levels
d)
orbit
24.
Which element has the greater ionization energy?
a)
Magnesium
b)
Phosphorus
25.
Put the following in order of increasing ionization energy:Strontium, Aluminum, Indium
a)
Strontium, Indium, Aluminum
b)
Strontium, Aluminum, Indium
c)
Indium, Aluminum, Strontium
d)
Aluminum, Indium, Strontium
26.
The element with the lowest electronegativity in Period 3 is - 
a)
Na
b)
Cl
c)
Ar
d)
Mg
27.
Which of the following elements has the smallest atomic radius: Li, O, C, F?
a)
Li
b)
O
c)
C
d)
F
28.
Of the elements Ca, Be, Ba, and Sr, which has the largest atomic radius?
a)
Be
b)
Ba
c)
Ca
d)
Sr
29.

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)

30.

Which of the following halogens has the greatest electronegativity?

a)

Chlorine (Cl)

b)

Bromine (Br)

c)

Iodine (I)

d)

Astatine (At)

31.

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)

32.

Which element has the weakest ionization energy?

a)

beryllium

b)

oxygen

c)

calcium

d)

bromine

33.

Which element has the largest atomic radius?

a)

barium

b)

magnesium

c)

carbon

d)

helium

34.
The element with the largest electronegativity in the halogens is - 
a)
At
b)
F
c)
Cl
d)
Br
35.
Which element has the greater ionization energy?
a)
Magnesium
b)
Phosphorus
c)

Barium

d)

Nitrogen

36.
Which of the following will have a larger radius than Zinc?
a)
Gallium
b)
Aluminum
c)
Magnesium
d)
Strontium
37.

The blue elements (left side) are called 

a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
38.

The yellow elements (right side) are called 

a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
39.

What do the periods (rows) represent?

a)

an additional energy ring

b)

an additional proton

c)

an additional group

d)

an additional electron

40.

This atom has an atomic number of ​ (a)   .

This atom has a mass number of ​ (b)   .

This atom has an atomic mass of ​ (c)   .

This atom has ​ (d)   valence electrons.

Choose from the below words
8
16
15.999
6
24
2
12
10
3
41.

Match the following

a)

1.

potassium

b)

2.

lithium

c)

3.

magnesium

d)

4.

titanium

e)

5.

sodium

42.

Label the following elements:

group 2, period 4

period 3, group 17

4 valence electrons, 2 energy rings

charge of +1, 3 energy rings

charge of -2, 7 energy rings

43.

Organize these options into the right categories

Categorize the following

neutral charge

protons = electrons

positive charge balances out negative charge

overall positive or negative charge

protons ≠ electrons

positive charge does not balance out the negative charge

uneven # of protons and electrons

have a charge

do not have a charge

even number of protons and electrons

Atom
Ion
44.

All elements start out as ​ (a)   atoms. This means their number of protons and ​ (b)   is equal. When they gain or lose electrons, they become ​ (c)   ions and are no longer neutral. There are 2 types of ions: ​ (d)   which have a positive charge and ​ (e)   which have a negative charge.

Choose from the below words
neutral
electrons
charged
cations
anions
neutrons
dipoles
atomions
chargion
45.

Match the following element to their number of valence electrons:

a)

lithium

1.

1

b)

magnesium

2.

2

c)

phosphorus

3.

5

d)

fluorine

4.

7

e)

neon

5.

8

46.

Which group has 8 valence electrons?

47.

Which group has 5 valence electrons?

48.

Why do atoms bond with other atoms?​ (a)  

Choose from the below words
to become more stable
to have 10 total electrons
to have a full septet in their outer shell
to become more like the alkali metals
49.

Determine whether these atoms will gain or lose electrons to become stable:

Categorize the following

Si

N

S

Cl

Na

Be

Ga

Sn

He

Ar

GAIN
LOSE
NEITHER
50.

SELECT ALL groups that will gain electrons when becoming an ion:

51.

SELECT ALL groups that will lose electrons when becoming an ion:

52.

Which group will not gain or lose electrons when becoming an ion:

53.

Which group has some elements that will gain electrons and some elements that will lose electrons when becoming an ion:

54.

Match the following elements to the charge it will have when it becomes charged:

a)

Li

1.

+1

b)

Sr

2.

+2

c)

Ga

3.

+3

d)

C

4.

-4

e)

Ge

5.

+4

55.

Match the following elements to the charge it will have when it becomes charged:

a)

As

1.

-3

b)

O

2.

-2

c)

Br

3.

-1

d)

Kr

4.

0

e)

B

5.

+3

56.

Metals ​ (a)   valence electrons to become ​ (b)   charged ​ (c)   . They have ​ (d)   protons than electrons.

Choose from the below words
lose
positively
cations
more
gain
negatively
anions
less
57.

Nonmetals ​ (a)   valence electrons to become ​ (b)   charged ​ (c)   . They have ​ (d)   protons than electrons.

Choose from the below words
lose
positively
cations
more
gain
negatively
anions
less
58.

K+1 has ​ (a)   protons and ​ ​ (b)   electrons.

C4- has ​ (c)   protons and ​ (d)   electrons

Sr2+ has 38 protons and ​ (e)   electrons.

Choose from the below words
19
6
18
10
36
20
2
40
12
39
59.

What is the ion symbol for an ion that has 12 protons and 10 electrons? Give the letters and the charge (you can't make the charge in superscript so just type it as a regular number. For example: H+1)

(a)  

60.

What is the ion symbol for an ion that has 29 protons and 28 electrons? Give the letters and the charge (you can't make the charge in superscript so just type it as a regular number. For example: H+1)

(a)  

61.

What is the ion symbol for an ion that has 15 protons and 18 electrons? Give the letters and the charge (you can't make the charge in superscript so just type it as a regular number. For example: H+1)

(a)  

62.

What is the ion symbol for an ion that has 9 protons and 10 electrons? Give the letters and the charge (you can't make the charge in superscript so just type it as a regular number. For example: H+1)

(a)  

63.

Label the parts of the atom:

64.

​ (a)   are in the ​ (b)   and contribute to the overall mass of an atom. They are the ​ (c)   particles inside the atom. the ​ (d)   are in the ​ (e)   and DO NOT contribute to the overall mass of an atom.

Choose from the below words
Protons and neutrons
electrons
nucleus
heaviest
cloud
protons and electrons
protons
neutrons
lightest
65.

Match the element to the correct place on the periodic table:

a)

group 1, period 2

1.

lithium - Li

b)

group 2, period 4

2.

calcium - Ca

c)

group 6, period 6

3.

tungsten - W

d)

group 14, period 3

4.

silicon - Si

e)

group 15, period 5

5.

antimony - Sb

66.

Match the description to the particle:

a)

Mass = 1 AMU

location = nucleus

charge = +1

1.

protons

b)

Mass = 1 AMU

location = nucleus

charge = 0

2.

neutron

c)

Mass = 0 AMU

location = rings

charge = -1

3.

electrons

67.

The atomic mass is the total number of

a)

Protons and Electrons

b)

Protons and Neutrons

c)

Electrons and Neutrons

d)

Protons, Neutrons and Electrons

68.

An atomic number of 8 means the atom has ________ protons.

a)

7

b)

8

c)

16

d)

88

69.

What is the mass number?

a)

the number of protons

b)

the number of protons + neutrons

c)

the number of neutrons + electrons

d)

the number of protons + electrons

70.

Match the description to the correct mass number (mass # = P + n):

a)

11 protons, 12 neutrons

1.

23

b)

10 protons,10 neutrons

2.

20

c)

30 protons, 35 neutrons

3.

65

d)

13 protons, 14 neutrons

4.

27

e)

36 protons, 49 neutrons

5.

85

71.

Label the groups and periods

72.

The protons and neutrons contribute to all of the atom's (a)  

73.

Match the element to the correct location

a)

group 1, period 4

1.

K

b)

group 2, period 3

2.

Mg

c)

group 5, period 7

3.

Db

d)

group 15, period 6

4.

Bi

e)

group 18, period 5

5.

Xe

74.

What is the mass number?

a)

the number of protons

b)

the number of protons + neutrons

c)

the number of neutrons + electrons

d)

the number of protons + electrons

75.

If an atom has 12 positively charged particles, which of the following must it also have to be considered a neutral atom?

a)

12 neutrons

b)

12 electrons

c)

12 protons

d)

24 protons and neutrons

76.

Identify the atoms based on their nulceus:

a)

1.

lithium

b)

2.

boron

c)

3.

nitrogen

d)

4.

neon

e)

5.

potassium

77.

Match the description to the correct mass number:

a)

11 protons, 11, electrons, 12 neutrons

1.

23

b)

10 protons, 10 electrons, 10 neutrons

2.

20

c)

30 protons, 30 electrons, 35 neutrons

3.

65

d)

13 protons, 13 electrons, 14 neutrons

4.

27

e)

36 protons, 36 electrons, 49 neutrons

5.

85

78.

How many protons does this element have?

a)

20

b)

40

c)

8

d)

2

79.

How many electrons does this element have?

a)

11

b)

23

c)

12

d)

1

80.

How many neutrons does this element have?

a)

45

b)

80

c)

35

d)

7

81.

How many valence electrons does this element have?

a)

17

b)

35

c)

13

d)

7

82.

How many valence electrons does this element have?

a)

11

b)

23

c)

12

d)

1

83.

What element does this bohr model represent?

a)

Si

b)

S

c)

Ni

d)

H

84.

What element does this bohr model represent?

a)

Si

b)

S

c)

Ni

d)

H

85.

Which Bohr model represents Be?

a)
b)
c)
d)
86.

What atom does this Bohr Model represent?

(a)  

87.
An element with five valence electrons is
a)
phosphorus
b)
oxygen
c)
beryllium
d)
rubidium
88.

How many valence (outer) electrons does an Oxygen atom have?

a)

2

b)

6

c)

8

d)

16

89.

What is the atomic number of this element?

a)

17

b)

18

c)

35

d)

35.453

90.

What is the mass number of this atom of Chlorine?

a)

17

b)

18

c)

35

d)

35.453

91.

Which element is this?

a)

Calcium

b)

Chlorine

c)

Silicon

d)

Potassium

92.

What element is this?

a)

Nitrogen

b)

Chlorine

c)

Argon

d)

Phosphorous

93.

What element is represented in this Bohr Model?

a)

Carbon

b)

Hydrogen

c)

Aluminum

d)

Lithium

94.
What is the mass number of this atom?
a)
1
b)
3
c)
4
d)
7
95.
What is the atomic number of this atom?
a)
2
b)
4
c)
6
d)
none of the above
96.

How many energy levels in this element?

a)

2

b)

5

c)

6

d)

3

97.

What period is this element located in?

a)

2

b)

20

c)

4

d)

3

98.

Which Bohr model represents Neon?

a)
b)
c)
d)
99.

Horizontal (SIDE TO SIDE) rows on the periodic table are

a)

groups

b)

periods

100.

How many energy levels does Au have? Just give me the number.

(a)  

101.

How many energy levels does O have? Just give me the number.

(a)  

102.

How many energy levels does Rb have? Just give me the number.

(a)  

103.

How many energy levels does He have? Just give me the number.

(a)  

104.

How many energy levels does Mg have? Just give me the number.

(a)  

105.

what period would this element be in?

a)

6

b)

8

c)

3

d)

16

106.

what period would this element be in?

a)

8

b)

3

c)

4

d)

7

107.

what period would this element be in?

a)

2

b)

3

c)

4

d)

5

108.

what period would this element be in?

a)

2

b)

3

c)

5

d)

7

109.

Which atoms are the same element?

110.

Label the blocks of the periodic table. You can reuse any of them if needed.

111.

Which of the following elements will have similar properties to 1s2 2s2 2p6 3s2 3p2?

a)

carbon

b)

calcium

c)

chlorine

d)

cesium

112.

What is the electron configuration for potassium?

a)

1s2 2s2 2p6 3s2 3p6 4s1

b)

1s2 2s2 2p6 3s2 3p6 4s2

c)

1s2 2s1 2p6 3s2 3p5 4s1

d)

1s2 2s2 2p6 3s1

113.

What electron configuration matches an oxygen atom?

a)

1s22s22p63s2, 3p64s23d104p5

b)

1s22s22p4

c)

1s22s22p6

d)

1s22s22p63s23p64s23d1

114.

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

115.

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

a)

Group 1

b)

Group 2

c)

Group 15

d)

Group 17

e)

Group 18

116.
The electron configuration of an atom is 1s22s22p6.  The number of electrons in the atom is 
a)
3
b)
6
c)
8
d)
10
117.
Which electron configuration belongs to Chlorine (Cl)?
a)
1s2s2p3s3p5
b)
1s2s2p3s3p6
c)
1s2s2p3s3p7
118.
What do you start electron configuration with?
a)
1s2
b)
1d10
c)
1f14
d)
1p6
119.

What is the noble gas notation for Sulfur?

a)

[Ne] 3p4

b)

[He] 3s2 3p4

c)

[Ne] 3s2 3p4

d)

[Na] 3s2 3p4

120.

Whta is the noble gas notation for V?

a)

[Ar] 4s2 4d2

b)

[Kr] 4s2 3d3

c)

[Ar] 4s2 4d3

d)

[Ar] 4s2 3d3

121.

What is the noble gas configuration for silicon?

a)

[Ne] 3s2 3p1

b)

[Ar] 4s1

c)

[Kr] 5s1

d)

[Ne] 3s2 3p2

122.
Question Image

Match the parts of the electron configuration to what it represents.

a)

1

1.

period (energy level)

b)

s

2.

block (orbital)

c)

2

3.

number of electrons in the orbital

123.

Finish the electron configuration for chlorine:

1s2 2s2 (a)   3s2 3p6

124.

Match the group to the configuration that it ends with.

a)

s1

1.

alkali metals

b)

s2

2.

alkaline earth metals

c)

p5

3.

halogens

d)

p6

4.

noble gases

125.

This element's electron configuration got mixed up! What element is this?

x6 x2 x10 x6 x6 x2 x2 x2 x9 x2

(a)  

126.

What is the missing piece?

1s2 2s2 ___ 3s1

a)

2p6

b)

2p4

c)

3p6

d)

3s2

127.

What are the missing pieces?

1s2 2s2 2p6 ___ 3p6 4s2 ___ 4p2

a)

3s2 , 4d10

b)

2p4 , 3d10

c)

3p6 , 3d10

d)

3s2 , 3d10

128.

Match the element to it's noble gas notation:

a)

krypton

1.

[Kr]

b)

silicon

2.

[Ne] 3s2 3p2

c)

strontium

3.

[Kr] 5s2

d)

copper

4.

[Ar] 4s2 3d9

129.

Reorder these from shortest electron configuration to the longest:

a)

hydrogen

b)

boron

c)

argon

d)

calcium

e)

xenon

1)
2)
3)
4)
5)
130.

The complete electron configuration for aluminum: ​ (a)   ​ (b)   ​ (c)   ​ (d)   ​ (e)  

Choose from the below words
2s2
2p6
3s2
3p1
1s2
1s3
2p2
3d2
2s1
2p1
131.

Click all the places you would stop and write on your way to sodium:

132.

Select all configurations that show an atom in the excited state:

133.

An electron configuration is like an element's address. It tells you 3 things about the element: the ​ (a)   tells you what period its in, ​ (b)   tells you what block its in, and ​ (c)   tells you how many ​ (d)   are in the orbital. Every configuration starts the same, with ​ (e)   .

Choose from the below words
big number in front
the letter
the exponent
electrons
1s2
small number
neutrons
1s1
2s2
134.

Label the three parts of an electron configuration:

135.
Question Image

Match the following

a)

a

1.

d

b)

b

2.

f

c)

c

3.

e

136.

Organize these options into the right categories. Be careful, there's a tricky one!

Categorize the following

3s1

2s1

7s1

4p5

6p5

1s2

5p6

2p6

2s2

6s2

alkali metals
halogens
noble gases
alkaline earth metals
137.

Match the element to the configuration that will be SIMILAR to it's configuration:

a)

magnesium

1.

1s2 2s2 2p6 3s2 3p6 4s2

b)

lithium

2.

1s2 2s2 2p6 3s1

c)

boron

3.

1s2 2s2 2p6 3s2 3p1

d)

nitrogen

4.

1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p3

e)

iodine

5.

1s2 2s2 2p6 3s2 3p5

138.
What is the noble gas configuration for beryllium?
a)
[He]1s2
b)
[He]2s2
c)
[Li]2s1
d)
[Li]2s2
139.
What is the noble gas configuration for Sulfur?
a)
[Ar] 3p4
b)
[He] 3s2 3p4
c)
[Ne] 3s2 3p4
d)
[Na] 3s2 3p4
140.

Which shows the correct orbital diagram for Cobalt?

a)
b)
c)
d)
141.

What is the noble gas configuration for Cobalt?

a)

[Kr] 4s2 3d7

b)

[Kr] 4s2 4d7

c)

[Ar] 4s2 3d7

d)

[Ar] 4s2 4d7

142.

Which of the following is the electron configuration for Fluorine

a)
b)
c)
d)
143.

Whta is the noble gas notation for V?

a)

[Ar] 4s2 4d2

b)

[Kr] 4s2 3d3

c)

[Ar] 4s2 4d3

d)

[Ar] 4s2 3d3

144.
What is the noble gas configuration for boron?
a)
[He]1s22s2
b)
[He]2s22p2
c)
[He]2s22p1
d)
[Li]2s22p1
145.
What is the noble gas configuration for phosphorus?
a)
[Ar] 3p5
b)
[He] 3s2 3p5
c)
[Ne] 3s2 3p3
d)
[Na] 3s2 3p5
146.
[He]2s22p4 is the noble gas configuration for which element?
a)
oxygen
b)
sulfur
c)
phosphorus
d)
fluorine
147.

Element is phosphorus:

Atomic Mass = ​ ​ (a)  

Atomic # = ​ (b)  

Mass Number =​ (c)  

#of protons & electrons = ​ (d)  

#of neutrons: ​ (e)  

Choose from the below words
30.97
16
31
15
14
30