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Interpreting Lewis Structures of Molecules

Total questions: 15

Worksheet time: 31mins

Name
Class
Date
1.

Which electrons are involved in the formation of a chemical bond?

a)

inner shell electrons

b)

all electrons

c)

valence electrons

2.

Which of the following ins NOT SHOWN in a Lewis Structure of a molecule?

a)

shared

electrons

b)

lone pair

electrons

c)

element symbols

d)

shells

3.

Which of the following describes the LINE between Oxygen and Hydrogen on each side.

CHOOSE THREE

a)

a shared

pair of electrons

b)

one single shared electron

c)

a single bond

d)

a lone pair of electrons

e)

a bonding pair of electrons

4.

This water molecule shows ___ pairs and ___ pairs.

a)

2 shared pairs

1 lone pair

b)

2 shared pairs

2 lone pairs

c)

2 shared pairs

4 lone pairs

5.

Which of the following IS NOT TRUE about COVALENT compounds?

a)

may contain metals

b)

share electrons

c)

they are called molecules

d)

may contain metalloids

6.

How many electrons are involved in a single bond?

a)

2

b)

4

c)

6

d)

8

7.

The formula for Oxygen gas is shown. How many electrons are being shared between them?

a)

2 since it its a single bond

b)

4 since it is a double bond

c)

6 since it is a triple bond

8.

What is the correct Lewis structure for NH3?

a)

b)

c)

9.

Which picture is the correct Lewis Dot Structure for HCl?

a)

b)

c)

10.

Which is the correct molecular structure for carbon dioxide?

a)

b)

c)

11.

Which Lewis Dot Model drawing correctly shows an O2 molecule?

a)

b)

c)

d)

12.

Is Fe2 one of the naturally diatomic elements?

a)

Yes

b)

No

13.

Is K2 one of the naturally diatomic elements?

a)

Yes

b)

No

14.

Is O2 one of the naturally diatomic elements?

a)

Yes

b)

No

15.

What are the seven diatomic elements?

a)

H2, Cl2, Br2, O2, N2, I2, F2

b)

H2, Cl2, I2, F2, Hg2, Br2, Fe2

c)

H2, Cu2, Ni2, B2, O2, I2, Fe2