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Chemical Bonding and Ions

Total questions: 70

Worksheet time: 1hrs 14mins

Name
Class
Date
1.

What is a positive ion called?

a)

anion

b)

cation

c)

isotope

d)

covalent

2.

What is a negative ion called?

a)

anion

b)

cation

c)

covalent

d)

isotope

3.

How many electrons would a Nitrogen ion gain/lose? If it has 5 valence electrons.

a)

lose 5

b)

gain 5

c)

lose 3

d)

gain 3

4.

What is the ion formed from Sulfur? If it has 6 valence electrons.

a)

S+2

b)

S-2

c)

S+6

d)

S-6

5.

How many electrons would a Calcium ion gain/lose? If it has 2 valence electrons.

a)

lose 1

b)

gain 1

c)

lose 2

d)

gain 2

6.

If an atom loses electrons, the charge will be positive.

a)

true

b)

false

7.

A Bromine ion gains 1 electron, which of the following is the correct symbol for a Bromine ion?

a)

Br-1

b)

Br+1

c)

Br+7

d)

Br-7

8.
What is the charge of an atom that has lost one electron?
a)
-1
b)
-2
c)
+1
d)
+2
9.

An atom with 2 protons, 3 neutrons, and 4 electrons has a charge of ____.

a)

+2

b)

-2

c)

+3

d)

0

10.

If an element has 3 valence electrons, what charge will likely form on its ion ?

a)

+3

b)

+5

c)

-3

d)

-5

11.
Ions are: 
a)
atoms with a positive or negative charge
b)
atoms with no charge
c)
atoms with ONLY a positive charge
d)
atoms with ONLY a negative charge
12.

Na has 1 valence electron. It will have a charge of _______

a)

+1

b)

+2

c)

-1

d)

-2

13.

Be has 2 valence electron. It will have a charge of _______

a)

+1

b)

+2

c)

-1

d)

-2

14.

Ca has 2 valence electron. It will have a charge of _______

a)

+1

b)

+2

c)

-1

d)

-2

15.

Al has 3 valence electron. It will have a charge of _______

a)

+3

b)

-3

c)

+2

d)

-2

16.

P has 5 valence electron. It will have a charge of _______

a)

+3

b)

-3

c)

+2

d)

-2

17.

S has 6 valence electron. It will have a charge of _______

a)

-2

b)

-1

c)

+1

d)

+2

18.

Iodine has 7 valence electron. It will have a charge of _______

a)

-2

b)

-1

c)

+1

d)

+2

19.

F has 7 valence electron. It will have a charge of _______

a)

-2

b)

-1

c)

+1

d)

+2

20.

Oxygen has 6 valence electron. It will have a charge of _______.

a)

+1

b)

-1

c)

+2

d)

-2

21.
What is an ion?
a)
A Charged Atom
b)
A Large Atom
c)
A Small Atom
d)
A Cute Atom
22.
Why are ions formed?
a)
To make our lives difficult
b)
Because atoms want 8 valence electrons
c)
Because atoms have the same number of protons and electrons
d)
Because atoms gained neutrons
23.
An atom becomes _________ when it gains electrons.
a)
Positive
b)
Negative
c)
Neutral
d)
Invinsible
24.

What is the charge of a sodium ion?

a)

+2

b)

+1

c)

-1

d)

-2

25.
Group 17 always has ions with a charge of 
a)
+1
b)
+2
c)
-1
d)
-2
26.
What charge will an Oxygen ion have? 
a)
+1
b)
-1
c)
+2
d)
-2
27.
If an element has 3 valence electrons, what charge will likely form on its ion ?
a)
+3
b)
+5
c)
-3
d)
-5
28.
Which of the following has a -3 charge?
a)
Boron
b)
Fluorine
c)
Nitrogen
d)
Neon
29.
charge of lithium ion
a)
-2
b)
-1
c)
+1
d)
+2
30.
charge of beryllium ion
a)
-2
b)
-1
c)
+1
d)
+2
31.
Which of the following has a -1 charge? 
a)
Aluminum
b)
Bromine
c)
Calcium
d)
Potassium
32.
Elements on the LEFT side of the periodic table will most likely form:
a)
Positive ions
b)
Negative ions
c)
Neutral Ions
d)
None of these
33.
Cations are...
a)
Positive
b)
Negative
c)
Neutral
d)
Purring
34.
Anions are...
a)
Positive
b)
Negative
c)
Neutral
d)
Crying
35.
An atom becomes _______ when it loses electrons.
a)
Positive
b)
Negative
c)
Neutral
d)
Invinsible
36.
Which particles change the charge in atoms when ions are formed?
a)
Protons
b)
Electrons
c)
Neutrons
d)
Kittens
37.
What is the ionic symbol for a Caesium atom?
a)
Cs+
b)
Cs-
c)
Cs+2
d)
Cs-2
38.
Make sure you get enough Potassium in your diet!
a)
Huh?
b)
K
c)
I <3 bananas
d)
Sure
39.

Typically, atoms are more stable when they are

a)

bonded together

b)

apart from each other

40.

Why do atoms bond?

a)

They typically don't bond

b)

To add or take away energy levels

c)

To have a full valance shell.

d)

To have a full inner shell

41.

Ionic bonding is between a

a)

nonmetal and nonmetal

b)

metal and nonmetal

c)

metal and metal

d)

Depends on the situation

42.

Covalent bonding is between a

a)

nonmetal and nonmetal

b)

metal and nonmetal

c)

metal and metal

d)

It depends on the situation

43.

Which bond does this picture best represent?

a)

Metallic bond

b)

ionic bond

c)

covalent bond

d)

James Bond

44.

What do positive ions tend to do?

a)

lose electrons

b)

gain electrons

c)

lose protons

d)

gain protons

45.

What happens when magnesium loses 2 electrons?

a)

It stabilizes to a net charge of 0

b)

It turns into an atom

c)

It becomes negatively charged

d)

It becomes positively charged

46.

Predict the bond between Mg and Cl

a)

covalent

b)

ionic

c)

metallic

d)

none of the above

47.

Which is the correct Lewis Structure for oxygen?

a)
b)
c)
d)
48.

What is the correct Lewis structure for BF3?

a)
b)
c)
d)

BF3 (The formula is the Lewis Structure)

49.

What is the chemical formula for Lithium Nitride?

a)

Li3N

b)

LiN3

c)

NLi3

d)

N3Li

50.

What is the ionic formula for a bond between Calcium and Phosphorus?

a)

Ca2P3

b)

Ca3P2

c)

Ca2P5

d)

P5Ca2

51.

What category of element usually forms a positive ion?

a)

Metals

b)

Nonmetals

c)

metalloids

d)

Noble gases

52.

Which category of elements usually form negative ions?

a)

metals

b)

nonmetals

c)

metalloids

d)

noble gases

53.

CaCl2 is an example of what type of bond?

a)

Covalent

b)

Metallic

c)

Ionic

54.

Which type of bond involves a transfer of electrons?

a)

ionic

b)

polar covalent

c)

nonpolar covalent

d)

metallic

55.

Which type of bond involves an unequal sharing of electrons?

a)

ionic

b)

polar covalent

c)

nonpolar covalent

d)

metallic

56.

Which type of bond involves the equal sharing of electrons?

a)

ionic

b)

polar covalent

c)

nonpolar covalent

d)

metallic

57.

Which type of bond involves highly mobile electrons?

a)

ionic

b)

polar covalent

c)

nonpolar covalent

d)

metallic

58.

When ionic bonds are formed electrons are

a)

shared between a metal and a nonmetal

b)

shared between metals

c)

transferred from nonmetals to metals

d)

transferred from metals to nonmetals

59.

Which of the following is the correct chemical formula of calcium nitrate?

a)

CaNO3

b)

Ca(NO3)2

c)

CaN

d)

Ca3N2

60.

Which of the following is the correct name for the compound PbO?

a)

lead oxide

b)

lead monoxide

c)

lead (I) oxide

d)

lead (II) oxide

61.

What is the correct IUPAC name for the compound P2O5?

*IUPAC stands for International Union of Pure and Applied Chemistry and it is the naming system that we use in class.

a)

phosphorus pentoxide

b)

diphosphorus pentoxide

c)

phosphorus oxide

d)

potassium oxide

62.

Metals are good conductors of electricity because when the metal atoms bond the valence electrons are

a)

highly mobile

b)

transferred

c)

shared equally

d)

shared unequally

63.

Which of the following compounds contains both ionic and covalent bonds?

a)

NaCl

b)

PCl3

c)

NaClO4

d)

CaBr2

64.

Which of the following compounds is able to conduct electricity when it is dissolved in solution but not as a solid?

a)

C6H12O6

b)

H2O

c)

PCl3

d)

CaCl2

65.

How many pairs of electrons are shared between the nitrogen atoms in a molecule of nitrogen?

a)

2

b)

3

c)

4

d)

6

66.

Which of the following forms a nonpolar covalent bond?

a)

Br2

b)

HBr

c)

NaBr

d)

PBr3

67.

Which correctly describes the molecular polarity of water?

a)

nonpolar and symmetrical

b)

nonpolar and asymmetrical

c)

polar and symmetrical

d)

polar and asymmetrical

68.

which of the following is a nonpolar molecule with polar covalent bonds?

a)

HCl

b)

Cl2

c)

CCl4

d)

KCl

69.

Which of the following is the most polar?

a)

HF

b)

HCl

c)

HBr

d)

HI

70.

Which of the following is a polar molecule?

a)

O2

b)

CO2

c)

NH3

d)

CH4

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