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Electron Configuration and Orbital Notation

Total questions: 52

Worksheet time: 45mins

Name
Class
Date
1.

What element has this electron configuration?

a)

hydrogen

b)

helium

c)

lithium

d)

beryllium

2.

What element has this orbital notation?

a)

lithium

b)

beryllium

c)

boron

d)

carbon

3.

What element has this electron configuration?

a)

helium

b)

lithium

c)

beryllium

d)

boron

4.

What element has this electron configuration?

a)

boron

b)

carbon

c)

nitrogen

d)

oxygen

5.

Which element is represented by this orbital notation?

a)

carbon

b)

nitrogen

c)

oxygen

d)

fluorine

6.

Which element is represented by this electron configuration?

a)

neon

b)

sodium

c)

magnesium

d)

aluminum

7.

Which element is represented by this orbital notation?

a)

neon

b)

sodium

c)

magnesium

d)

aluminum

8.

Which of the following is the electron configuration for Fluorine

a)
b)
c)
d)
9.

Which of the following is the electron configuration for neon?

a)
b)
c)
d)
10.

Which of the following is the electron configuration for silicon?

a)
b)
c)
d)
11.

Which of the following is the electron configuration for silicon?

a)
b)
c)
d)
12.

Which of the following is the orbital notation for oxygen?

a)
b)
c)
d)
13.
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
14.
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
15.
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
16.
Which guideline, Hund’s rule or the Pauli exclusion principle, is violated in the following orbital diagrams?
a)
Hund's
b)
Aufbau's
c)
Pauli's Exclusive
17.
Which guideline, Hund’s rule or the Pauli exclusion principle, is violated in the following orbital diagrams?
a)
Aufbau's
b)
Hund's
c)
Pauli exclusive
18.
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
19.

What is the element?

a)

Neon

b)

Chlorine

c)

Aluminum

d)

Argon

20.

What is the element?

a)

sulfur

b)

chlorine

c)

phosphorus

d)

silicon

21.

Which is the electron configuration for beryllium?

a)
b)
c)
d)
22.
What electron configuration matches an oxygen atom?
a)
1s22s22p63s2, 3p64s23d104p5
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p64s23d1
23.
The electron configuration of an atom is 1s22s22p6.  The number of electrons in the atom is 
a)
3
b)
6
c)
8
d)
10
24.
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
25.
How many electrons can the d sublevel hold?
a)
14
b)
10
c)
2
d)
6
26.
How many electrons can the s sublevel hold?
a)
14
b)
10
c)
2
d)
6
27.
How many electrons can the p sublevel hold?
a)
14
b)
10
c)
2
d)
6
28.

How many valence electrons are represented here?

a)

7

b)

5

c)

2

d)

8

29.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
30.
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
31.
What is the number of valence electrons for Carbon?
a)
12
b)
6
c)
5
d)
4
32.

How many valence electrons are represented here?

1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p2

a)

2

b)

12

c)

4

d)

10

33.

Which atom matches this shorthand electron configuration?

[Xe] 6s24f145d9

a)

Mercury

b)

Gold

c)

Platinum

d)

Thallium

34.
How many electrons can the p sublevel hold?
a)
14
b)
10
c)
2
d)
6
35.

TRUE or FALSE: valence electrons are in the last s or s and p orbitals.

a)

true

b)

false

36.

Which ion is this an electron configuration of: 1s22s22p63s23p6

a)

Na+

b)

O2-

c)

P3-

d)

Rb+

37.
How many valence electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
4
38.
What is the noble gas shorthand electron for Sulfur atom?
a)
[Ar] 3p4
b)
[He] 3s23p4
c)
[Ne] 3s23p4
d)
[Na] 3s23p4
39.
What atom matches this electron configuration?
1s22s22p63s2
a)
Neon
b)
Magnesium
c)
Aluminum
d)
Potassium
40.
What is the charge of an atom that has lost one electron?
a)
-1
b)
-2
c)
+1
d)
+2
41.
What is the charge of an atom that has gained one electron?
a)
-1
b)
-2
c)
+1
d)
+2
42.
How many electron can be found in a s orbital?
a)
2
b)
3
c)
4
d)
1
43.

How many electrons can be found in a 5p orbital?

a)

2

b)

3

c)

4

d)

6

44.
What is the electronic configuration of sodium?
a)
1s22s22p63s1
b)
[Ne]3s1
c)
1s22s22p7
d)
Both A and B are correct
45.
How many electrons can the first energy level hold?
a)
1
b)
2
c)
8
d)
0
46.
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
47.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
48.

Each row on the periodic table represents:

a)

an energy level

b)

a sublevel

c)

an electron

d)

an orbital

49.
What's a valence electron?
a)
electrons in the second energy level
b)
electrons in the outermost energy level
c)
the atomic number
d)
electrons in the first level
50.
How many valence electrons are in Phosphorus?
a)
15
b)
4
c)
5
d)
31
51.
How many electrons are in the outer shell of Sodium (Na)?
a)
3
b)
1
c)
2
d)
4
52.
How many electrons should Beryllium have around its Lewis dot model?
a)
1
b)
2
c)
3
d)
4

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