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Valence Electrons Lesson Review

Total questions: 14

Worksheet time: 8mins

Name
Class
Date
1.
Which is an electron?
a)
A
b)
B
c)
C
2.

How many electrons go in the first shell (level) ?

a)

6

b)

8

c)

2

3.

This is a Bohr Diagram of Aluminum. How many valence electrons does Aluminum have?

a)

3

b)

4

c)

5

4.

How many valence electrons does Bromine (Br - atomic number 35) have?

a)

5

b)

6

c)

7

5.
What is a valence electron?
a)
an electron that is found in the outermost shell of an atom. 
b)
an electron found in the innermost shell of an atom.
c)
an electron found in the middle shell.
6.

How many valence electrons in this atom of Carbon?

a)

2

b)

4

c)

5

7.

How many valence electrons does Helium (He - atomic number 2) have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

8.

How many valence electrons does Nitrogen (N - atomic number 7) have?

a)

3 Valence electron

b)

4 Valence electron

c)

5 Valence electron

9.

How many valence electrons does Potassium (K - atomic number 19) have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

10.

How many energy levels does Chlorine (Cl - atomic number 17) have?

a)

2

b)

1

c)

3

11.

Electrons are arranged around the nucleus in regions called

a)

Energy floors

b)

Energy shelves

c)

Energy levels

12.

The outermost energy level is called the

a)

Ultimate shell

b)

Electron shell

c)

Valence shell

13.

Electrons in the outermost energy level are called

a)

Valence electrons

b)

the best electrons

c)

Outside electrons

14.

How many energy levels does Beryllium (Be - atomic number 4) have?

a)

2

b)

1

c)

3