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Bonding Review

Total questions: 41

Worksheet time: 41mins

Name
Class
Date
1.

The chemical bond formed when two atoms share electrons is called a(n)

a)

covalent bond

b)

ionic bond

c)

metallic bond

d)

electron bond

2.

Which pair of atoms will combine with each other and form an ionic bond?

a)

C and O

b)

C and H

c)

Ca and Mg

d)

Ca and Br

3.

. 

What is the chemical formula of an ionic compound formed between Magnesium and Chlorine

a)

MgClMgCl  

b)

Mg2ClMg_2Cl  

c)

MgCl2MgCl_2  

4.

How does calcium become a calcium ion?

a)

Lose 2 electrons

b)

Gain 2 electrons

c)

Lose 1 electron

d)

Gain 1 electron

5.

Which is the correct name for CaCl2, and why?

a)

Calcium chloride, because ionic compounds don't get number prefixes

b)

Calcium chloride, because covalent compounds don't get number prefixes

c)

Calcium dichloride, because ionic compounds get number prefixes

d)

Calcium dichloride, because covalent compounds get number prefixes

6.

Ionic Bonds

a)

Non metal and non metal

b)

Metal and non metal

7.

What does a Roman numeral in an ionic compound's name mean? Example: chromium (III) nitrate

a)

the charge of the metal ion

b)

the subscript of the metal ion

c)

the subscript of the other ion

d)

the atomic number of the metal ion

8.

Electrons of Ionic Bonds are ____________?

a)

Transferred

b)

Shared

c)

Combined

d)

Split

9.

Which of these properties does NOT accurately describe ionic compounds?

a)

high melting point

b)

hard and brittle

c)

conducts electricity when solid

d)

conducts electricity when melted or dissolved

10.

An atom becomes a positive ion when it gains an electron.

a)

True

b)

False. It becomes a negative ion!

c)

False. It becomes a neutral ion!

11.

Which element is most likely to gain electrons in a chemical reaction?

a)

Kr

b)

K

c)

Br

d)

Ca

12.

Atoms become positive ions by

a)

Gaining electrons

b)

Losing electrons

c)

Gaining protons

d)

Sharing electrons

13.

Anions are formed by

a)

Gaining electrons

b)

Losing electrons

c)

Sharing electrons

d)

None of the above

14.

How does an atom of aluminum become an ion?

a)

It gains 3 electrons

b)

It gains 3 protons

c)

It loses 3 electrons

d)

It loses 3 neutrons

15.

Which element will most likely form an ionic bond with chlorine?

a)

O

b)

N

c)

S

d)

K

16.

How many electrons are shared between the hydrogen atoms in a molecule of H2 gas?

a)

0

b)

1

c)

2

d)

4

17.

Which atoms are most likely to form covalent bonds?

a)

metal atoms that share electrons

b)

metal atoms that share protons

c)

nonmetal atoms that share electrons

d)

nonmetal atoms that share protons

18.

Electrons involved in the formation of chemical bonds are called

a)

valence electrons

b)

chemical electrons

c)

Lewis electrons

d)

none of the above

19.

Which of the following is NOT an example of covalent bonding?

a)

H2O

b)

NaF

c)

NH3

d)

O2

20.

How many electrons are needed in the outer energy levels of most atoms for the atom to be chemically stable?

a)

2

b)

4

c)

6

d)

8

21.

Which of the following is an example of a molecule?

a)

H2O

b)

NaF

c)

Mg3N2

d)

all of the above are molecules

22.

Substances composed of ionic bonds are usually

a)

Solids

b)

Liquids

c)

Gases

d)

Plasma

23.

How many electrons are being shared in a triple bond?

a)

3

b)

6

c)

8

d)

12

24.

The properties of a compound are the properties of the elements that form it.

a)

Different from

b)

Similar to

c)

Identical to

d)

Derived from

25.

A group of covalently bonded atoms that acts together as one charged atom is a

a)

crystal

b)

molecule

c)

polyatomic ion

d)

cation

26.

Which of the following is the reason why atoms of sodium and chlorine attract each other in a salt crystal?

a)

Sodium has a positive charge and chlorine has a negative charge

b)

Sodium has a negative charge and chlorine has a positive charge

c)

Both have a positive charge

d)

Both have a negative charge

27.

Which of the following is the correct name for a compound between Magnesium and Sulfur?

a)

Magnesium sulfur

b)

Magnesium sulfide

c)

Magnesium (II) sulfide

d)

Dimagnesium disulfide

28.

Which of the following is the correct name for a compound between Phosphorous and Chlorine?

a)

Phosphorous chlorine

b)

Phosphorous chloride

c)

Phosphorous (III) chloride

d)

Phosphorous trichloride

29.

Which statement provides the best description of a covalent bond?

a)

The attraction between atoms when they share electrons

b)

The attraction between opposite charges of ions in a compound

c)

Usually forms between a metal and a nonmetal

d)

Usually stronger than an ionic bond

30.

Which of the following is a similarity between ionic and covalent bonds?vvvv

a)

Both include the gaining and losing of electrons

b)

Both include the sharing of electrons

c)

Both make the elements more stable

d)

Both are typically found as solids at room temperature.

31.

What is the oxidation number of oxygen in most compounds?

a)

6

b)

-2

c)

8

d)

0

32.

Cations are ions with a (positive / negative) charge that are formed when an atom (gains / loses) electrons.

a)

Positive, Gains

b)

Positive, Loses

c)

Negative, Gains

d)

Negative, Loses

33.

Anions are ions with a (positive / negative) charge that are formed when an atom (gains / loses) electrons.

a)

Positive, Gains

b)

Positive, Loses

c)

Negative, Gains

d)

Negative, Loses

34.

(Ionic / Covalent) bonds form when elements share electrons.

a)

Ionic

b)

Covalent

c)

Both ionic and covalent

d)

Neither ionic or covalent

35.

(Ionic / Covalent) compounds are usually the strongest.

a)

Ionic

b)

Covalent

c)

Both ionic and covalent

d)

Neither ionic nor covalent

36.

(Ionic / Covalent) compounds are usually solid at room temperature and form a crystal structure.

a)

Ionic

b)

Covalent

c)

Both ionic and covalent

d)

Neither ionic nor covalent

37.

Na2O

a)

Ionic

b)

Covalent

38.

AgNO3

a)

Ionic

b)

Covalent

39.

H2O

a)

Ionic

b)

Covalent

40.

CBr4

a)

Ionic

b)

Covalent

41.

NH4Cl

a)

Ionic

b)

Covalent

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