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QUANTUM NUMBERS

Total questions: 20

Worksheet time: 16mins

Name
Class
Date
1.

There may be a maximum of ____ p orbitals at a given energy level.

a)

2

b)

6

c)

3

d)

8

2.

The spin of an electron is represented by this variable:

a)

n

b)

m

c)

L

d)

s, ms

3.

The principle quantum number, n, represents the:

a)

spin value

b)

suborbital value

c)

energy level

d)

magnetic value

4.

How many electrons total are found in the f orbital?

a)

2

b)

6

c)

10

d)

14

5.
What is the electron configuration for F?
a)
1s2 2s2 3p5
b)
1s2 2s2 3d5
c)
1s2 2s2 2p5
d)
1s2 2p5
6.

What does the 1 in "1s" stand for?

a)

energy level

b)

s orbitals

c)

p orbitals

d)

the number of electrons

7.

What element has the electron configuration 1s2 2s2 2p6 3s2 3p5?

a)

Chlorine

b)

Argon

c)

Fluorine

d)

Sulfur

e)

Bromine

8.

How many electrons are in 1s2 2s2 2p4?

a)

5

b)

6

c)

8

d)

13

9.

If n = 1, what are the allowed values of L? select all that apply

a)

0

b)

1

c)

2

d)

3

10.

If n = 2, what are the allowed values of L? select all that apply

a)

-1, 0, 1

b)

-2

c)

2

d)

3

11.

If n=4, l=3?

a)

4f

b)

4d

c)

3s

d)

3p

12.

What is the correct representation for an orbital which has an "n" value of 3 and an "l" value of 1?

a)

3s

b)

3p

c)

3d

d)

3f

13.

Which of the following sets of quantum numbers (n, l, ml, and ms) describes the valence electron of Na?

a)

2, 1, 0, -½

b)

2, 0, 0, -½

c)

3, 1, 1, +½

d)

3, 0, 0, +½

14.

Which of the following sets of quantum numbers (n, l, ml, and ms) describes the valence electron of 4s1?

a)

2, 0, 0, +1/2

b)

2, 1, 0, +1/2

c)

4, 0, 0, +1/2

d)

4, 1, 1, +1/2

15.

Which of the following sets of quantum numbers (n, l, ml, and ms) describes the electron 3p6?

a)

3, 1, 0, - 1/2

b)

3, 1, -1, -1/2

c)

1, 2, -1, -1/2

d)

1, 3, -1, -1/2

16.

A subshell containsing 7 orbitals is called ... subshell.

a)

s

b)

p

c)

d

d)

f

17.

The total amount of electrons that can be filled within p subshell are ... electrons.

a)

6

b)

10

c)

14

d)

18

18.

A theory stating that electrons have the trend of taking the orbitals from the lowest energy level to the highest is the theory of... .

a)

Pauli exclusion’s principle

b)

Aufbau principle

c)

Hund’s rule

d)

Heissenberg’s probability

19.

A subshell that contains 5 orbitals is ... subshell.

a)

d

b)

s

c)

f

d)

p

20.
How many electrons can the first energy level hold?
a)
1
b)
2
c)
8
d)
0