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Chemistry Unit Review

Total questions: 25

Worksheet time: 4hrs 13mins

Name
Class
Date
1.

What is the number of energy levels in the atom Aluminum (Al)?

a)

1

b)

2

c)

3

d)

4

2.

How is mass determined

a)

subtracting the protons and electrons

b)

subtracting the protons and neutrons

c)

adding the protons and neutrons

d)

adding the protons and electrons

3.

How many electrons does Nitrogen have? Hint use your period table

a)

3

b)

4

c)

7

d)

14

4.

Which subatomic particle has the least mass?

a)

Nucleus

b)

Neutron

c)

Electron

d)

Proton

5.
What element is represented in this Bohr Model? 
a)
Carbon
b)
Hydrogen
c)
Aluminum
d)
Lithium
6.

What is the atomic number of this atom? (Use your notes)

a)

2

b)

4

c)

6

d)

none of the above

7.

How many neutrons does this atom have?

a)

1

b)

2

c)

3

d)

4

8.

How many protons does this atom have?

a)

1

b)

2

c)

3

d)

4

9.

How many electrons does atom have?

a)

1

b)

2

c)

3

d)

4

10.

How many valence electrons does this atom have?

a)

1

b)

2

c)

3

d)

4

11.

Valence Electrons

a)

determine the charge of the atom

b)

determine the atomic mass

c)

determine the atom's chemical properties

d)

determine the charge of an atom

12.
What subatomic particles would you find in the nucleus of an atom?
a)
Protons only
b)
Protons and Neutrons
c)
Neutrons and Electrons
d)
Protons and Electrons 
13.
What subatomic particle is electrically neutral (no charge)?
a)
Proton
b)
Ion
c)
Neutron
d)
Electron
14.
What subatomic particle(s) would be found orbiting the nucleus?
a)
Neutrons only
b)
Electrons only
c)
Protons and Neutrons
d)
Protons and Electrons
15.

The horizontal row on the periodic table is called a <----------->

a)

group

b)

family

c)

period

d)

atomic number

16.

A vertical column is called...

a)

group

b)

tower

c)

period

d)

crew

17.

Which element is a metal?

a)

Boron (B)

b)

Sodium (Na)

c)

Argon (Ar)

d)

Silicon (Si)

18.

Which element is a non-metal?

a)

Potassium (K)

b)

Carbon (C)

c)

Sulfur (S)

d)

Neon (Ne)

19.

The elements along the staircase are called

a)

metals

b)

nonmetals

c)

metalloids

d)

noble gases

20.

How shiny a metal is

a)

luster

b)

brittle

c)

malleable

d)

dull

21.
How many valence electrons are elements trying to reach in their outer shells?
a)
1
b)
2
c)
5
d)
8
22.
What determines the reactivity of an element?
a)
Size of its nucleus
b)
Number of total electrons
c)
Number of valence electrons
d)
Number of shells
23.
How do you determine the number of valence electrons an element has?
a)
Look at its period
b)
Look at its group
c)
Look at its atomic number
d)
Look at its atomic mass
24.
Which of these grouping of elements could have the characteristic of brittle?
a)
Metal
b)
Nonmetal
25.
Nonmetals occur to the ________of the dark zig-zag on the periodic table. 
a)
A. right
b)
B. middle
c)
C. left