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Oxidation numbers

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

How many valence electrons do elements in Group 15 have?

a)

15

b)

5

c)

4

2.

How many electrons are required to fill the outer shell for elements in Group 15

a)

15

b)

3

c)

5

3.

How many valence electrons do elements in Group 13 have?

a)

13

b)

5

c)

3

4.

How many valence electrons do elements in Group 1 have?

a)

7

b)

10

c)

1

5.

How many valence electrons are required to fill the outer shell for elements in Group 17?

a)

17

b)

1

c)

7

6.

How many valence electrons do most elements in Group 18 have?

a)

18

b)

8

c)

2

7.

What is the charge, or oxidation number, for elements in Group 17?

a)

+ 1

b)

-7

c)

-1

8.

What is the charge, or oxidation number, for elements in Group 2?

a)

-2

b)

+2

c)

-3

9.

What is the charge, or oxidation number, for elements in Group 13?

a)

+ 3

b)

-5

c)

+13

10.

What is the charge, or oxidation number, for elements in Group 14?

a)

14

b)

+4/-4

c)

-16