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Quantum Numbers and Electron Configuration

Total questions: 50

Worksheet time: 1hrs 7mins

Name
Class
Date
1.

1. Below are the quantum number classifications, except... .

a)

Principal quantum number

b)

primal momentum quantum number

c)

Magnetic quantum number

d)

Spin quantum number

2.

2. A quantum number determining orbital orientation around the atom’s core is called... .

a)

n

b)

ml

c)

ms

d)

l

3.

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

a)

s

b)

p

c)

d

d)

f

4.

4. Below are the examples on how to fill the atomic quantum number, except... .

a)

n = 2, l =1, ml = 0, ms = -1/2

b)

n = 1, l =-2, ml = 0, ms = +1/2

c)

n = 3, l =1, ml = 0, ms = -1/2

d)

n = 3, l = 2, ml = +2, ms = +1/2

5.

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

a)

6

b)

10

c)

14

d)

18

6.

7. The spin quantum number (ms), has value within... .

a)

0 up to (n-1)

b)

0, 1, 2, 3, ...

c)

-l up to. +l

d)

-1/2 and +1/2

7.

How many electrons total are found in the f orbital?

a)

2

b)

6

c)

10

d)

14

8.

10. Below are the correct answer of the writing of electron configuration, except... .

a)

6f2

b)

2p5

c)

3d7

d)

4s3

9.

11. Symbol d in the configuration of 3d10 states... .

a)

The total amount of the atom shells

b)

Its subshell of the located electron

c)

The amounnt of electrons filling the subshell

d)

The atomic valence in modern periodic table of the elements

10.

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

a)

d

b)

s

c)

f

d)

p

11.

13. A theory stating that it is forbidden for 2 electrons having the same value of atomic quantum numbers is explained by... .

a)

Hund

b)

Aufbau

c)

Pauli

d)

Schrodinger

12.

15. Orbital shape of an atom is characterized by ... quantum number.

a)

Spin QN

b)

Principal QN

c)

Magnetic QN

d)

Angular Momentum QN

13.

which element describe the location of the highest energy electron of

(n=2, 𝓁 =1, m𝓁 = 0 , ms = +1/2)

a)

C

b)

N

c)

O

d)

F

e)

Ne

14.

which element describe the location of the highest energy electron of

(n=2, 𝓁 =1, m𝓁 = -1 , ms = +1/2)

a)

Li

b)

N

c)

B

d)

F

e)

Ne

15.

which element describe the location of the highest energy electron of

(n=2, 𝓁 =1, m𝓁 = -1 , ms = +1/2)

a)

Li

b)

N

c)

B

d)

F

e)

Ne

16.

Which element describe the location of the highest energy electron of

(6, 1, 0, -1/2)

a)

Pb

b)

Rn

c)

B

d)

O

e)

Ne

17.

What is the QN of Chromium whose highest energy electron would have?

a)

4, 1, -1, +1/2

b)

4, 2, +1, +1/2

c)

6, 1, 0, -1/2=

d)

2, 1, +1, -1/2

18.

What is the QN of Fluorine whose highest energy electron would have?

a)

2, 1, -1, +1/2

b)

2, 2, +1, +1/2

c)

3, 1, 0, -1/2=

d)

2, 1, +1, -1/2

19.

Which of the following represents a permissible set of quantum numbers? (Check if Permissible, more than one answers)

a)

2, 2, +1, -1/2

b)

5, 1, 0, +1/2

c)

6, 3,-2, +1/2

d)

7, -1, 0, -1/2

e)

4, 1, 8, +1/2

20.

What element has a highest energy quantum number of 4, 2, +1, +1/2? Write Symbol only

(a)  

21.

What element has a highest energy quantum number of 6, 1, 0, -1/2? Write Symbol only

(a)  

22.

The 4th electron in carbon has a QN of _________

a)

2, 0, 0, -1/2

b)

3, 2, 2, +1/2

c)

5, 2, -2, +1/2

d)

5, 1, -1, +1/2

e)

3, 1, -1, +1/2

23.

The 25th electron in Hf _________

a)

2, 0, 0, -1/2

b)

3, 2, 2, +1/2

c)

5, 2, -2, +1/2

d)

5, 1, -1, +1/2

e)

3, 1, -1, +1/2

24.

The 57th electron in Ho _________

a)

2, 0, 0, -1/2

b)

3, 2, 2, +1/2

c)

5, 2, -2, +1/2

d)

5, 1, -1, +1/2

e)

3, 1, -1, +1/2

25.

The 49th electron in Xe _________

a)

2, 0, 0, -1/2

b)

3, 2, 2, +1/2

c)

5, 2, -2, +1/2

d)

5, 1, -1, +1/2

e)

3, 1, -1, +1/2

26.
What atom matches this electron configuration?
1s2 2s2 2p6 3s2
a)
Neon
b)
Magnesium
c)
Aluminum
d)
Potassium
27.
Which is the electron configuration for an oxygen atom?
a)
1s22s22p63s23p64s2
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p6
28.
Which element is pictured?
a)
neon
b)
fluorine
c)
magnesium
d)
argon
29.
There are 4 different types of subshells s,p,d,f
a)
true
b)
false
30.
Electrons occupy orbitals of lowest energy first is part of what electron configuration rule?
a)
Hund’s Rule
b)
Aufbau Principle
c)
Pauli Exclusion Principle
31.
What does Pauli exclusion principle state ?
a)
states that each electron occupies the lowest energy orbital available
b)
states that a maximum of two electrons can occupy a single atomic orbital, but if only if the electros have opposite spins
c)
states that single electrons electrons with the same spin must occupy each-energy orbital before additional electrons with opposite spins can occupy the same orbitals
32.
What does Hund's rule states ?
a)
states that single electrons electrons with the same spin must occupy each-energy orbital before additional electrons with opposite spins can occupy the same orbitals
b)
states that each electron occupies the lowest energy orbital available
c)
states that a maximum of two electrons can occupy a single atomic orbital, but if only if the electros have opposite spins
33.
The electron configuration of an atom is 1s22s22p6.  The number of electrons in the atom is 
a)
3
b)
6
c)
8
d)
10
34.
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
35.
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
36.
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
37.

This orbital diagram represents

a)

Nitrogen

b)

Oxygen

c)

Carbon

d)

Neon

38.

What is incorrect about this orbital diagram?

a)

Both arrows in the 2p box should be pointing up

b)

There are too many electrons in the 1s orbital

c)

In the 2p boxes, there should only be 1 electron in the first 2p box and one in the 2nd 2p box

d)

All the arrows should be pointing up

39.

Which orbital diagram violates of Hund's Rule?

a)

A

b)

B

c)

C

d)

D

40.

This orbital diagram represents

a)

Nitrogen

b)

Oxygen

c)

Carbon

d)

Neon

41.

This orbital diagram represents

a)

Sodium

b)

Magnesium

c)

Aluminum

d)

Iron

42.
Which orbital shows a violation of Hund's Rule?
a)
A
b)
B
c)
C
d)
D
43.
Which orbital shows a violation of the Aufbau Principle?
a)
A
b)
B
c)
C
d)
D
44.
Which orbital shows a violation of the Pauli Exclusion Principle?
a)
A
b)
B
c)
C
d)
D
45.

Which is the correct orbital notation for nitrogen (atomic # = 7)

a)
b)
c)
d)
46.

What atom matches this electron configuration?

1s22s22p63s23p64s23d10

a)

zinc

b)

copper

c)

nickel

d)

germanium

47.

What is the short-hand electron configuration for sulfur?

a)

[Ar] 3p4

b)

[He] 3s2 3p4

c)

[Ne] 3s2 3p4

d)

[Na] 3s2 3p4

48.

Which of the following is the electron configuration of Rhenium?

a)

[Xe]6s24f145d5

b)

[Xe]6s24f145d10

c)

[Ne]3s23p2

d)

[Xe]6s24f145d3

e)

[Kr]5s24d2

49.

Which of the following is diamagnetic?

a)

Ne

b)

N

c)

Na

d)

None

50.

Which of the following is Paramagnetic?

a)

Ar

b)

Cl

c)

Both Ar and Cl

d)

None

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