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Unit 10 Test Review

Total questions: 31

Worksheet time: 46mins

Name
Class
Date
1.
Which type of bond has an equal sharing of electrons?
a)
Polar Covalent 
b)
Non Polar Covalent
c)
Ionic
d)
Metallic
2.
Which type of bond has an unequal sharing of electrons?
a)
Polar Covalent 
b)
Non Polar Covalent
c)
Ionic
d)
Metallic
3.
Which type of bond has a transfer of an electron from on atom to another?
a)
Polar Covalent 
b)
Non Polar Covalent
c)
Ionic
d)
Metallic
4.
If an atom loses two electrons what charge will it have?
a)
+ 2
b)
 - 2
c)
+1
d)
-1
5.
If an atom gains one electron what charge will it have?
a)
-2
b)
-1
c)
+1
6.
What is the number of valence electrons for Oxygen?
a)
8
b)
6
c)
2
d)
1
7.
How many valence electrons in this structure?
a)
6
b)
5
c)
4
d)
7
8.
Which of these is not a real bond in chemistry?
a)
James
b)
Ionic
c)
Covalent
9.

Use your knowledge and electronegativity sheet to predict what the following compound is classified as.

a)

nonpolar covalent

b)

polar covalent

c)

ionic

d)

metallic

10.

Use your knowledge and electronegativity sheet to predict what the following compound is classified as.

a)

non-polar covalent

b)

polar covalent

c)

ionic

d)

metallic

11.

In a polar covalent bond, electrons are shared:

a)

equally

b)

unequally

c)

between two metals

d)

between a metal and a non-metal

12.
The most electronegative atom in the periodic table is:
a)
Fluorine
b)
Helium
c)
Neon
d)
Francium
13.
In this Lewis structure, the symbol above F means...
a)
electrons are being transferred to Fluorine
b)
electrons are less attracted to F than H
c)
electrons are more attracted to F than H
d)
Fluorine has formed a cation
14.

Will PH3 be polar or nonpolar based on the electronegativity difference and the shape?

a)

polar

b)

nonpolar

15.
According to the octet rule most elements need _______ valence electrons.
a)
2
b)
8
c)
6
d)
18
16.
Hydrogen needs _____ electrons in its valence shell to be stable.
a)
4
b)
6
c)
8
d)
2
17.
A molecule of methane has what shape?
a)
Tetrahedral
b)
Triangular
c)
Pyramidal
d)
Octahedral
18.
The theory that is used to predict the arrangement of atoms about a central atom is called?
a)
Valence shell repulsion
b)
Valence shell electron sharing
c)
Valence shell electron pair repulsion
d)
Valence electron shell repulsion pair
19.
Atoms of H only form _________ bonds.
a)
Double
b)
Single
c)
Multiple
d)
Triple
20.
What is the name of the group that never reacts--ever ever they are stable with a full outermost ring!!!
a)
noble gases
b)
transition
c)
halogens
d)
borons
21.
An element with five valence electrons is
a)
phosphorus
b)
oxygen
c)
beryllium
d)
rubidium
22.
Which of the following is the correct Lewis dot structure for the molecule fluorine (F2)?
a)
A
b)
B
c)
C
d)
D
23.

What is the correct Lewis Dot Structure for ammonia NH3

a)
b)
c)
d)
24.

Which is the correct molecular structure for carbon dioxide?

a)
b)
c)
d)
25.

How many total valence electrons are participating in bonding in the molecule above?

a)

8

b)

4

c)

2

d)

3

26.

In HCN (Carbon is usually the central atom) what kind of bond is between the C and N

a)

Single

b)

Double

c)

Triple

27.

What is the following shape?

a)

Linear

b)

Bent

c)

Trigonal Pyramidal

d)

Trigonal Planar

28.

What is the following shape?

a)

Linear

b)

Trigonal Planar

c)

Tetrahedral

d)

Trigonal Pyramidal

29.

What is the following shape?

a)

Linear

b)

Bent

c)

Trigonal Pyramidal

d)

Tetrahedral

30.

What is the following shape?

a)

Linear

b)

Bent

c)

Trigonal Pyramidal

d)

Tetrahedral

31.

Which of these Lewis structures is incorrect?

a)
b)
c)
d)

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