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Intro to Chemistry Review

Total questions: 45

Worksheet time: 26mins

Name
Class
Date
1.

Which of the following is made up of two or more types of atoms chemically combined together?

a)
Elements
b)
Compounds
c)
Mixtures
2.

Air is a(n) _________. 

a)
element 
b)
mixture 
c)
compound 
3.
Elements can be broken down into simpler substances. 
a)
false 
b)
true 
4.

Diamonds (C) and uranium (U) are examples of

a)

elements

b)

mixtures

c)

compounds

5.
Is sugar (C12H22O11) an element or a compound?
a)
Element
b)
Compound
6.

Diagram A is an example of a(n)

a)

element

b)

compound

c)

mixture

7.

Diagram B is an example of a(n)

a)

element

b)

compound

c)

mixture

8.

Diagram C is an example of a(n)

a)

element

b)

compound

c)

mixture

9.

What does this diagram represent?

a)

Elements

b)

Compounds

c)

Mixture of Elements and Compunds

d)

Mixture of Compounds

10.

Type of mixture that has the SAME COMPOSITION in every part.

a)

Homogenous

b)

Heterogeneous

11.

Type of mixture that DOESN'T HAVE the same composition in every part.

a)

Homogeneous

b)

Heterogeneous

12.
The positive particles of an atom are 
a)
electrons 
b)
positrons 
c)
neutrons 
d)
protons 
13.
all matter is made of what 
a)
energy 
b)
atoms 
c)
electrons 
d)
compounds 
14.
the central region of an atom where its neutrons and protons are is its 
a)
nucleus 
b)
electron cloud
c)
core 
d)
center 
15.
an atom with atomic number 6 would have how many protons 
a)
6
b)
12
c)
3
d)
cannot be determined 
16.
Particles in an atom that are neutral and have no charge are 
a)
negatrons 
b)
electrons 
c)
neutrons 
d)
protons 
17.
True or False? Neutrons have a negative charge
a)
True
b)
False
18.
What is the atomic number for an element with three protons?
a)
2
b)
1
c)
3
d)
6
19.
An atom's mass number equals the number of...
a)
protons plus the number of electrons
b)
protons plus the number of neutrons
c)
protons
d)
neutrons
20.
Which statement about the atomic nucleus is correct?
a)
The nucleus is made of protons and neutrons and has a negative charge
b)
The nucleus is made of protons and neutrons and has a positive charge
c)
The nucleus is made of electrons and has a positive charge
d)
The nucleus is made of electrons and has a negative charge
21.
A particle that moves around the nucleus is a(n)...
a)
Proton
b)
Neutron
c)
Electron
d)
Quark
22.
What does the nucleus consist of?
a)
Protons + Electrons
b)
Neutrons + Electrons
c)
Atoms
d)
Protons + Neutrons
23.
What charge does an Electron have?
a)
Negative
b)
Positive
c)
Neutral
d)
Complicated
24.
a)
Periods
b)
Groups
25.
a)
Periods
b)
Groups
26.
The number at the bottom of each square on the periodic table is the ...
a)
atomic number
b)
atomic mass
c)
chemical symbol
d)
element name
27.
The number at the top of each square on the periodic table is the ...
a)
atomic number
b)
atomic mass
c)
Chemical Symbol
d)
Element Name
28.

What is the force that holds atoms together?

a)

Chemical Bonds

b)

Physical Bonds

c)

Newtonians

d)

Chemical Changes

29.

What two things can be determined using an element's atomic number?

a)

Protons

b)

Electrons

c)

Neutrons

d)

Atoms

30.

What does the mass number of an element tell you?

a)

Number of Electrons

b)

Number of Neutrons and Electrons

c)

Number of Protons and Neutrons

d)

Number of Neutrons

31.

As you move down a column on the periodic table, mass

a)

Increases

b)

Decreases

c)

Doesn't Change

d)

Depends on what family the element is in

32.

As you move to the left on the periodic table, mass

a)

Increases

b)

Decreases

c)

Doesn't Change

d)

Depends on what family the element is in

33.

Periods on a periodic table indicate ...

a)

The # of valence electrons

b)

The # of energy rings

c)

The # of Protons

d)

The # of Electrons

34.

Groups on a periodic table indicate...

a)

# of Valence Electrons

b)

# of Energy rings

c)

# of Protons

d)

# of Electrons

35.

The # of electrons in the outermost ring of an element are known as...

a)

Energy Rings

b)

Valence Electrons

c)

Protons

d)

Neutrons

36.

A student is searching for an element known to be a gas. Where should she look on the periodic table?

a)

The left side

b)

Right in the middle

c)

The right side

d)

The bottom

37.
Contains only one kind of atom.
a)
Element
b)
Compund
c)
Mixture
38.
Contains two or more atoms combined
a)
Elements
b)
Compounds
c)
Mixtures
39.
The air is a _________. 
a)
element 
b)
mixture 
c)
compound 
d)
energy 
40.
Examples are milk and gasoline.
a)
elements
b)
mixtures
c)
compounds
41.

Examples are diamonds (C) and Uranium (U)

a)

elements

b)

mixtures

c)

compounds

42.
Is sugar (C12H22O11) an element or a compound?
a)
Element
b)
Compound
43.
Which of the following is not a compound?
a)
HCl
b)
Cl
c)
NaCl
d)
CO2
44.

diagram "a" is an example of a(n)

a)

element

b)

compound

c)

mixture

45.

Lucky Charms

a)

Heterogeneous

b)

Homogeneous

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