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Unit 7 quiz

Total questions: 29

Worksheet time: 29mins

Name
Class
Date
1.

The octet rule states that atoms want to have how many electrons.

a)

6

b)

7

c)

8

d)

12

2.

Ionic Bonds form when atoms share electrons

a)

True

b)

False

3.

Oxygen has how many valence electrons

a)

5

b)

6

c)

7

d)

8

4.

Nitrogen wants to form how many bonds?

a)

1

b)

2

c)

3

d)

5

5.

What is the correct name for the following atom.  C4H10C_4H_{10}  




a)

Tetracarbon Decahydride

b)

Carbon Hydride

c)

Carbon-4 Hydrogen-10

d)

Tetracarbon Decahyrogen

6.

 Al2O3Al_2O_3  

Name this atom

a)

Dialuminum Trioxide

b)

Aluminum Oxide

c)

Dialuminum Trioxygen

d)

Aluminum Oxygen

7.

 Al2O3Al_2O_3  

Is this ionic or Covalent

a)

Ionic

b)

Covalent

8.
a)

Polar Covalent

b)

Non-Polar Covalent

c)

Ionic

9.

a)

Polar Covalent

b)

Non-Polar Covalent

c)

Ionic

10.

a)

Polar Covalent

b)

Non-Polar Covalent

c)

Ionic

11.

What kind of bond does N2 Form

a)

Single Bond

b)

Double Bond

c)

Triple bond

12.
An ionic bond forms when atoms ___________ electrons.
a)
gain
b)
share
c)
increase
d)
transfer
13.
Which type of bond has an unequal sharing of electrons?
a)
Polar Covalent 
b)
Non Polar Covalent
c)
Ionic
d)
Metallic
14.
All chemical bonds involve two atoms sharing electrons.
a)
True
b)
False
15.
If an atom loses two electrons what charge will it have?
a)
+ 2
b)
 - 2
c)
+1
d)
-1
16.
The bonds in Na2O are best described as 
a)
a.  covalent, because valence electrons are shared.
b)
covalent, because valence electrons are transferred
c)
ionic, because valance electrons are shared.
d)
ionic, because valance electrons are transferred. 
17.

Why is this diagram of bonding in carbon dioxide (CO2) incorrect?

a)

There should be 2 carbon atoms and one oxygen

b)

2 more electrons should be added to the carbon atom

c)

there should be a double bond not a single bond

d)

2 more electrons should be added to the oxygen atoms

18.

What is the correct formula for this molecule?

a)

CH

b)

C1H4

c)

CH4

d)

C4H

19.
How many electrons are needed in the outer energy levels of an atom to be stable?
a)
2
b)
4
c)
6
d)
8
20.

Which of the following is the best representation of a molecule of fluorine (F2)?

a)

A

b)

B

c)

C

d)

D

21.

Which formula is for phosphorus trichloride?

a)

KCl3

b)

PCl3

c)

K3Cl

d)

P3Cl

22.

Silicon dioxide is the compound in sand. What is its formula?

a)

SO2

b)

NaO2

c)

SiO2

d)

SiO

23.

What is the formula for diphosphorus pentoxide?

a)

P2O5

b)

PO5

c)

P5O2

d)

P2O6

24.
What is the correct name for NO?
a)
Mononitrogen Monoxide
b)
Nitrogen Monoxide
c)
Mononitrogen Dioxide
d)
Nitrogen Oxide
25.
What would you name this molecule?
a)
SNa3
b)
H3O
c)
NaCl
d)
H2O
26.
If an atom of nitrogen gains 3 electrons, what is its overall charge?
a)
Neutral - No charge
b)
+3
c)
-3
d)
-1
27.

Which bond does this picture best represent?

a)

Metallic bond

b)

ionic bond

c)

covalent bond

d)

James Bond

28.

Which is the correct Lewis Structure for oxygen?

a)
b)
c)
d)
29.

What is the correct Lewis structure for BF3?

a)
b)
c)
d)

BF3 (The formula is the Lewis Structure)