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Electron Configurations

Total questions: 30

Worksheet time: 1hrs 4mins

Name
Class
Date
1.
The electron configuration of an atom is 1s22s22p6.  The number of electrons in the atom is 
a)
3
b)
6
c)
8
d)
10
2.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
3.
What atom matches this electron configuration?
1s22s22p63s2
a)
Neon
b)
Magnesium
c)
Aluminum
d)
Potassium
4.
Which of the following is the correct electron configuration for a phosphorus  atom?
a)
1s2 2s2 2p6 3s2 3p3
b)
1s2   2s2   3p3 
c)
1s2 2s2 2p6 3s2 3p6 
d)
1s2 2s2  3s2 2p6 3p3
5.
Which of the following is the correct electron configuration for a neon atom?
a)
1s2 2s2 2p3
b)
1s2 2s2 2p6 3s1
c)
1s2 2s2 2p6 3s2 3p6 4s2 3d8
d)
1s2 2s2 2p6 
6.
What electron configuration matches an oxygen atom?
a)
1s22s22p63s2, 3p64s23d104p5
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p64s23d1
7.

What is the electron configuration of Ag?

a)

1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d9

b)

[Kr] 5s2 4d10

c)

1s2 2s2 2p6 3s2 3p6 4s2 4p6 5s2 4d9

d)

1s2 2s2 2p6 3s2 3p6 3d10 4s2 4d10 4p6 5d10 5s2 4d9

8.
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
9.

What electron configuration matches an Bromine atom?

a)

1s22s22p63s2, 3p64s23d104p5

b)

1s22s22p4

c)

1s22s22p6

d)

1s22s22p63s23p64s23d1

10.
What is the electronic configuration of iron?
a)
1s22s22p63s23p64s23d6
b)
1s22s22p63s23p63d8
c)
1s22p63s23p64s23d6
d)
1s22s22p63s23p64s13d6
11.

What is the correct complete electron configuration for Nitrogen (N)?

a)

1s12s12p3

b)

1s12s22p3

c)

1s22s22p3

d)

1s22s22p6

12.

What is the correct complete electron configuration for Sulfur(S)?

a)

1s22s22p63s23p4

b)

3s23p4

c)

1s22s22p63s23p6

d)

1s22s22p4

13.
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
14.
Write the full electronic structure for Ca with 20 electrons.
a)
1s22s22p63s23p6
b)
1s22s22p63s23p64s0
c)
1s22s22p63s23p64s1
d)
1s22s22p63s23p64s2
15.
Write the full electronic structure for Sc with 21 electrons.
a)
1s22s22p63s23p63d3
b)
1s22s22p63s23p63d14s2
c)
1s22s22p63s23p64s24d1
d)
1s22s22p63s23p64s23d1
16.

Write the full electronic structure for Cu with 29 electrons.

a)

1s22s22p63s23p63d104s1

b)

1s22s22p63s23p63d94s2

c)

1s22s22p63s23p64s23d9

d)

1s22s22p63s23p64s13d10

17.
What atom matches this electron configuration?
1s22s22p63s23p64s1
a)
Argon
b)
Magnesium
c)
Aluminum
d)
Potassium
18.
What is this element? 
1s22s22p63s23p64s23d104p6
a)
Argon
b)
Krypton
c)
Selenium
d)
Bromide
19.
Which of the following elements is a noble gas?
a)
1s2 2s2
b)
1s2 2s2 2p5
c)
1s2 2s2 2p6 3s2 3p6
d)
1s2 2s2 2p6 3s1
20.
Which of the following elements is a transition metal?
a)
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6
b)
1s2 2s2 2p6 3s2 3p6 
c)
1s2 2s2 2p6 3s2 3p6 4s2 
d)
1s2 2s2 2p6 3s2 3p6 4s2 3d4
21.
What is the abbreviated electron configuration for silver?
a)
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d9
b)
[Kr] 5s2 4d9
c)
[Ar] 4s2 3d9
d)
[Ag]
22.
What is the abbreviated electron configuration for barium?
a)
[Xe] 6s2
b)
[Rn] 6s2
c)
[Ar] 4s2 3d10 4p5
d)
[He] 2s2 3p1
23.

What is incorrect about this orbital diagram?

a)

Both arrows in the 2p box should be pointing up

b)

There is nothing incorrect with this diagram

c)

In the 2p box there should only be 1 electron in the first 2p box and one in the 2nd 2p box pointing in the same direction.

d)

All the arrows should be pointing up.

24.
Which element is depicted from this orbital diagram
a)
Fluorine
b)
Neon
c)
Chlorine
d)
Argon
25.
Which orbital shows a violation of Hund's Rule?
a)
A
b)
B
c)
C
d)
D
26.
Which orbital shows a violation of the Pauli Exclusion Principle?
a)
A
b)
B
c)
C
d)
D
27.
An electron occupies the lowest energy orbital that can receive it.
a)
Hund’s rule
b)
Pauli exclusion principle
c)
Bohr model of the atom
d)
Aufbau principle
28.
What is the noble gas configuration for boron?
a)
[He]1s22s2
b)
[He]2s22p2
c)
[He]2s22p1
d)
[Li]2s22p1
29.
What is the noble gas configuration for Sulfur?
a)
[Ar] 3p4
b)
[He] 3s2 3p4
c)
[Ne] 3s2 3p4
d)
[Na] 3s2 3p4
30.
Identify the element for
[Xe] 6s2 4f14 5d4
a)
Cobalt
b)
Iron
c)
Tungstun

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