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Electron Configuration Practice

Total questions: 37

Worksheet time: 2hrs 51mins

Name
Class
Date
1.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
2.
What electron configuration matches an oxygen atom?
a)
1s22s22p63s2, 3p64s23d104p5
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p64s23d1
3.
What is the shorthand electron configuration for Sulfur atom?
a)
[Ar] 3p4
b)
[He] 3s23p4
c)
[Ne] 3s23p4
d)
[Na] 3s23p3
4.
Which of the following is a p block element?
a)
Ca
b)
Ar
c)
Re
d)
Au
5.

What is this element?

1s22s22p63s23p64s23d104p6

a)

Argon

b)

Krypton

c)

Selenium

d)

Bromide

6.

What is the electronic configuration of sodium?

a)

1s22s22p63s1

b)

[Ne]3s1

c)

1s22s22p7

d)

Two of the choices are correct

7.
[He]2s22p4 is the noble gas configuration for which element?
a)
oxygen
b)
sulfur
c)
phosphorus
d)
fluorine
8.
What is the noble gas configuration for phosphorus?
a)
[Ar] 3p5
b)
[He] 3s2 3p5
c)
[Ne] 3s2 3p3
d)
[Na] 3s2 3p5
9.
What is the noble gas configuration for Neon?
a)
[Ne]
b)
[He]2s22p6
c)
[F]2p1
d)
[Ne]2s21p6
10.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
11.
What is this element?
[Xe] 6s24f145d9
a)
Mercury
b)
Gold
c)
Platinum
d)
Thallium
12.
What is this element? 
[Ar]4s2
a)
Calcium
b)
Sodium
c)
Scandium
d)
Titanium
13.
What is the maximum number of electrons that an orbital can have?
a)
1 electron
b)
2 electrons
c)
3 electrons
d)
4 electrons
14.
How many d orbitals are there in a given sublevel?
a)
1
b)
3
c)
5
d)
7
15.
How many electrons can the first energy level hold?
a)
1
b)
2
c)
8
d)
0
16.
Which of the following is a p block element?
a)
Ca
b)
Ar
c)
Re
d)
Au
17.

The maximum number of electrons that can be placed in the p subshell.

a)

2

b)

6

c)

10

d)

14

18.

What is the Electron Configuration of Helium?

a)

1s2

b)

1s1

c)

2s1

d)

1s22s1

19.
How many electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
4
20.

What do you start all electron configurations with?

a)

1s2

b)

1d10

c)

1f14

d)

1p6

21.

The 4 orbitals are

a)

s, p, d, f

b)

a, b, c, d

c)

2, 4, 6, 8

22.
How many d orbitals are there in a given sublevel?
a)
1
b)
3
c)
5
d)
7
23.
How many p orbitals are there in a sublevel?
a)
2
b)
1
c)
4
d)
3
24.
How many electrons can the d sublevel hold?
a)
8
b)
10
c)
2
d)
4
25.

Electrons fill energy levels and sublevels _____ in energy first.

a)

lower

b)

higher

26.
 The diagram above represents two electrons with 
a)
a. opposite spins.
b)
 b. the same spin.
c)
c. different energies.
d)
d. different energy levels.
27.
1.  What is the shape of an s orbital?
a)
sphere
b)
dumbbell
c)
double dumbbell
d)
TOO COMPLEX TO KNOW IT.
28.
Which is associated with more energy? 
a)
2p
b)
2s
c)
3p
d)
1s
29.

Which of the following is the electron configuration for neon?

a)
b)
c)
d)
30.

Which of the following is the electron configuration for silicon?

a)
b)
c)
d)
31.

Which of the following is the orbital notation for oxygen?

a)
b)
c)
d)
32.
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
33.
All orbitals of equal energy are occupied by one electron before any single orbital is occupied by a second electron.
a)
Aufbau principle
b)
Pauli exclusion principle
c)
Hund’s rule
d)
Core Notation
34.
No two electrons in the same atom can have the same four quantum numbers.
a)
Aufbau principle
b)
Pauli exclusion principle
c)
Hund’s rule
d)
Noble gas notation
35.
Electrons are paired based on their spin directions, clockwise and counterclockwise, is what electron configuration rule?
a)
Hund’s Rule
b)
Aufbau Principle
c)
Pauli Exclusion Principle
36.

What is the element?

a)

Neon

b)

Chlorine

c)

Aluminum

d)

Argon

37.

Which is the electron configuration for beryllium?

a)
b)
c)
d)

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