wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Exceptions to the Octet Rule - Covalent Bonding

Total questions: 14

Worksheet time: 29mins

Name
Class
Date
1.

What elements can form an incomplete octet? (Check all that apply.)

a)

Boron

b)

Bismuth

c)

Beryllium

d)

Barium

2.

A molecule with an unpaired number of electrons in its outer shell is: (check all that apply)

a)

a free radical

b)

unstable

c)

highly reactive

d)

an expanded octet

3.

Draw the Lewis Dot structure for BH3 on your own. Then compare your drawing to the answer choices, and select the correct drawing for BH3.

a)
b)
c)
d)
4.

Draw the Lewis Dot Structure for BeI2. Then compare your drawing to the answer choices, and select the correct answer choice.

a)
b)
c)
d)
5.

Which of the following is true about expanded octets? (Check all that apply.)

a)

Any element can have an expanded octet.

b)

Elements in row 3 and lower on the periodic table can have expanded octets.

c)

An expanded octet is when an element has less than 8 electrons.

d)

An expanded octet is when an element has more than 8 electrons.

e)

An expanded octet is when an atom has an unpaired set of electrons in its outer shell.

6.
a)

follows the octet rule

b)

is an incomplete octet

c)

is an expanded octet

d)

is a free radical

7.

a)

follows the octet rule

b)

is an incomplete octet

c)

is an expanded octet

d)

is a free radical

8.

a)

follows the octet rule

b)

is an incomplete octet

c)

is an expanded octet

d)

is a free radical

9.

a)

follows the octet rule

b)

is an incomplete octet

c)

is an expanded octet

d)

is a free radical

10.

a)

follows the octet rule

b)

is an incomplete octet

c)

is an expanded octet

d)

is a free radical

11.

a)

follows the octet rule

b)

is an incomplete octet

c)

is an expanded octet

d)

is a free radical

12.

Draw the Lewis Dot Structure for SeF4. Then carefully compare your drawing the choices, and select the correct choice.

a)
b)
c)
d)
13.

Draw the Lewis Dot Structure for carbonate, CO32-. Then carefully compare your drawing the answer choices and select the correct choice.

a)
b)
c)
d)
14.

Draw the Lewis Dot Structure for SiF3. Then carefully compare your drawing to the answer choices and select the correct answer.

a)
b)
c)
d)