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Covalent Bonding

Total questions: 42

Worksheet time: 21mins

Name
Class
Date
1.

What two types of atoms make a covalent bond?

a)

2 nonmetals

b)

2 metals

c)

1 nonmetal & 1 metal

d)

2 noble gases

2.

A covalent bond occurs when...

a)

one atom takes an electron of another atom

b)

one atom shares an electron with another atom

c)

one atom transfers a valence electron to a different atom

d)

2 different atoms both have 8 valence electrons

3.

What are electrons found on the outer-most energy level called?

a)

Core Electrons

b)

Octet electrons

c)

Valence Electrons

d)

Polar Electrons

4.

Atoms are the most stable when...

a)

2 or more are bonded together to form molecules (or compounds)

b)

they are separate and apart from other atoms

5.

Which group/family of elements does not readily form compounds?

a)

Halogens

b)

Alkaline Earth Metals

c)

Noble Gases

d)

Metalloids

6.

Noble gases do not readily react or form covalent compounds because...

a)

they already have 7 electrons in their outer-most energy level

b)

they are gases so they don't react easily

c)

they only make ionic compounds

d)

they have completely full outer energy levels

7.

In a covalent bond, one or more electrons are...

a)

shared

b)

gained

c)

lost

d)

transferred

8.

If 2 covalently bonded atoms are the same element, then the bond is...

a)

polar

b)

nonpolar

c)

dipolar

d)

ionic

9.

Polar molecules are ....

a)

symmetrical

b)

asymmetrical

10.

Polar covalent bonds share electrons _________, and nonpolar covalent bonds share electrons _________.

a)

evenly; unevenly

b)

unevenly; evenly

11.

Which image shows a polar covalent bond?

a)

b)

c)

d)

12.

Which compound is polar?

a)

CH₄ 

b)

CO₂

c)

O₂

d)

HF

13.

Which compound is polar?

a)

CF₄ 

b)

BF₃

c)

H₂O

d)

Br₂

14.

What is the correct Lewis Dot Structure for NF₃?

a)

b)

c)

d)

15.

What is the Lewis Dot Structure for CH₄?

a)

b)

c)

16.

What is the Lewis Dot Structure for CO₂?

a)

b)

c)

d)

17.

What is the Lewis Dot Structure for HF?

a)
b)
c)
d)
18.

Use the VSEPR Theory to predict the shape of CH₄

a)

trigonal planar

b)

trigonal pyramidal

c)

tetrahedral

d)

bent

e)

linear

19.

Use the VSEPR Theory to predict the shape of AlBr₃ (aluminum tribromide)

*Al is stable with 6 ve-

a)

trigonal planar

b)

trigonal pyramidal

c)

tetrahedral

d)

bent

e)

linear

20.

Use the VSEPR Theory to predict the shape of H₂O

a)

trigonal planar

b)

trigonal pyramidal

c)

tetrahedral

d)

bent

e)

linear

21.

Use the VSEPR Theory to predict the shape of O₂

a)

trigonal planar

b)

trigonal pyramidal

c)

tetrahedral

d)

bent

e)

linear

22.

Use the VSEPR Theory to predict the shape of SiO₂

a)

trigonal planar

b)

trigonal pyramidal

c)

tetrahedral

d)

bent

e)

linear

23.

Use the VSEPR Theory to predict the shape of PI₃

a)

trigonal planar

b)

trigonal pyramidal

c)

tetrahedral

d)

bent

e)

linear

24.

Name this VSEPR theory geometric shape

a)

trigonal planar

b)

trigonal pyramidal

c)

tetrahedral

d)

bent

e)

linear

25.

Name this VSEPR theory geometric shape

a)

trigonal planar

b)

trigonal pyramidal

c)

tetrahedral

d)

bent

e)

linear

26.

Name this VSEPR theory geometric shape

a)

trigonal planar

b)

trigonal pyramidal

c)

tetrahedral

d)

bent

e)

linear

27.

Name this VSEPR theory geometric shape

a)

trigonal planar

b)

trigonal pyramidal

c)

tetrahedral

d)

bent

e)

linear

28.

Name this VSEPR theory geometric shape

a)

trigonal planar

b)

trigonal pyramidal

c)

tetrahedral

d)

bent

e)

linear

29.

What is the chemical formula for dinitrogen pentoxide?

a)

NO₅

b)

N₂O₅

c)

N₂PeO₅

d)

DO₅

30.

What is the chemical formula for triphosphorus hexabromide?

a)

PBr₆

b)

P₃Br₇

c)

P₃B₆

d)

P₃Br₆

31.

What is the chemical formula for dihydrogen dioxide?

a)

H₂O

b)

He₂O₂

c)

HO₂

d)

H₂O₂

32.

What is the chemical formula for sulfur hexafluoride?

a)

SiF₆

b)

SF₆

c)

SHF₆

d)

SF

33.

How many hydrogen atoms are in dicarbon hexahydride?

a)

2

b)

4

c)

6

d)

7

34.

How many bromine atoms are in silicon tetrabromide?

a)

2

b)

4

c)

6

d)

7

35.

Name the chemical compound: Si₂Br₆

a)

disulfur hexabromine

b)

silicon bromide

c)

disiliconide hexabromide

d)

disilicon hexabromide

36.

Name the chemical compound: BF₃

a)

boron trifluorine

b)

boron trifluoride

c)

boride trifluoride

d)

boron fluoride

37.

Name the chemical compound: NO₂

a)

nitrous oxide

b)

mononitride dioxide

c)

mononitrogen dioxide

d)

nitrogen dioxide

38.

When two nonmetals do not share electrons evenly, the resulting covalent bond will be

a)

nonpolar

b)

polar

c)

ionic

d)

metallic

39.

What is the chemical formula for carbon tetrachloride?

a)

CCl₄

b)

CH₄

c)

CCl₃

d)

C₄Cl

40.

Use the VSEPR Theory to predict the shape of NH₃ (ammonia)

a)

trigonal planar

b)

trigonal pyramidal

c)

tetrahedral

d)

bent

e)

linear

41.

What is the chemical formula for phosphorus pentachloride?

a)

PCl₅

b)

P₅Cl

c)

PCl₃

d)

P₃Cl₅

42.

What is the chemical formula for carbon tetrachloride?

a)

CCl₄

b)

C₄Cl

c)

C₄Cl₄

d)

CCl₃

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