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Elements, Compounds, and Mixtures

Total questions: 55

Worksheet time: 34mins

Name
Class
Date
1.

What subatomic particle has a positive charge?

a)

Proton

b)

Neutron

c)

Electron

d)

Quark

2.
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 
3.
What subatomic particle is electrically neutral (no charge)?
a)
Proton
b)
Ion
c)
Neutron
d)
Electron
4.
What subatomic particle(s) would be found orbiting the nucleus?
a)
Neutrons only
b)
Electrons only
c)
Protons and Neutrons
d)
Protons and Electrons
5.
Protons and Electrons balance the charge of an atom.
a)
True
b)
False
6.
If an atom has 12 positively charged subatomic particles, which of the following must it also have to be considered a neutral atom?
a)
12 neutrons
b)
12 electrons
c)
12 protons
d)
24 protons and neutrons
7.
The smallest particle of any type of matter is known by which of the following terms?
a)
Element
b)
Compound
c)
Atom
d)
Chemical
8.
What particle uniquely identifies an element?
a)
Number of Valence Electrons
b)
Number of Protons
c)
Number of Electrons
d)
Atomic Mass
9.
Which one of these is NOT located in the element square on the Periodic Table?
a)
Atomic Number
b)
Atomic Mass
c)
Room Temperature
d)
Chemical Symbol
10.
Where are electrons of an atom found?
a)
Nucleus
b)
Electron Cloud
c)
Some are in the nucleus and some in the electron cloud.
d)
They are moving everywhere.
11.
Electrons have this type of charge?
a)
negative
b)
positive
c)
neutral
12.
What is the atomic number for an element with three protons?
a)
2
b)
1
c)
3
d)
6
13.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
14.
What are the 3 particles that make-up the atom?
a)
protons, neutrons, and isotopes
b)
neutrons, isotopes, and electrons
c)
positives, negatives, and electrons
d)
protons, neutrons, and electrons
15.
The charge of a neutron in an atom.
a)
positive
b)
negative
c)
neutral
d)
+1
16.
an atom with atomic number 6 would have how many protons 
a)
6
b)
12
c)
3
d)
cannot be determined 
17.
True or False? Neutrons have a negative charge
a)
True
b)
False
18.
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
19.
A particle that moves around the nucleus is a(n)...
a)
Proton
b)
Neutron
c)
Electron
d)
Quark
20.
Atoms have no electric charge because they...
a)
have an equal number of charged and non charged particles
b)
have neutrons in their nuclei
c)
have an equal number of electrons and protons
d)
have an equal number of neutrons and protons
21.
What charge does an Electron have?
a)
Negative
b)
Positive
c)
Neutral
d)
Complicated
22.

Where is the element's atomic NUMBER located?

a)

the top

b)

the bottom

c)

the top + the bottom

d)

the number of protons + the number of neutrons

23.

Where is the element's atomic MASS located?

a)

at the top

b)

at the bottom

c)

the top number + the bottom number

d)

the number of protons + the number of neutrons

24.
all matter is made of what 
a)
energy 
b)
atoms 
c)
electrons 
d)
compounds 
25.
The symbol for Carbon is
a)
6
b)
12.011
c)
C
d)
Ca
26.
Beryllium has how many protons?
a)
4
b)
9.0122
c)
2
d)
13.0122
27.
Compounds are made up of two or more atoms physically combined.
a)
True
b)
False
28.
How many elements are represented in the compound?
Na2CO3
a)
1
b)
2
c)
3
d)
4
29.
Which of the following is not a compound?
a)
HCl
b)
Cl
c)
NaCl
d)
CO2
30.
Can compounds be found in the periodic table?
a)
Yes
b)
No
31.
Is water an element or a compound?
a)
Element
b)
Compound
32.
Water (H2O) freezing is an example of:
a)
A chemical change
b)
A physical change
33.
Is Iron (Fe) an element or a compound?
a)
Element
b)
Compound
34.
A compound consists of two or more elements bound together.
a)
True
b)
False
35.
What does the element AI stand for ?
a)
Gold
b)
Actinium
c)
Iron
d)
Aluminum
36.
Is salt (NaCI) a compound or a element
a)
Compound
b)
element
37.
a)
element
b)
compound
c)
mixture of elements
d)
mixture of compounds
38.
a)
element
b)
compound
c)
mixture of elements
d)
mixture of compounds and elements
39.
a)
element
b)
compound
c)
mixture of elements and compounds
d)
mixture of compounds
40.
a)
element
b)
compound
c)
mixture of elements
d)
mixture of compounds
41.
a)
element
b)
compound
c)
mixture of elements
d)
mixture of compounds
42.

This diagram represents...

a)

An element

b)

A molecule

c)

A compound

d)

A mixture of elements and compounds

43.

What is a mixture?

a)

elements chemically combined

b)

a combination of different substances

c)

composed of one atom only

d)

it is made of chemical

44.
What type of mixture is this?
a)
heterogeneous 
b)
homogeneous
45.
Sand floating in water, but most of the sand is settled at the bottom this an example of which type of mixture?
a)
A solution
b)
A colloid
c)
A suspension
d)
A compound
46.

In a solution, it is the substance that is being dissolved.

a)

Solute

b)

Suspension

c)

Colloid

d)

Solvent

47.

In a solution, it is the dissolving substance.

a)

solvent

b)

suspension

c)

colloid

d)

solution

48.
____ is another name for a homogeneous mixture. 
a)
Solution
b)
Suspension
c)
Substance
d)
Liquid 
49.

The air around is a mixture of gases.

a)

True

b)

False

50.

It is a type of mixture that has the SAME COMPOSITION in every part.

a)

Homogenous

b)

Heterogeneous

51.

Chocolate milk is an example of a _________________.

a)

homogeneous mixture

b)

heterogeneous mixture

52.

Salad is an example of a _____________.

a)

homogeneous mixture

b)

heterogeneous mixture

53.

Colored water is an example of a ________.

a)

homogeneous mixture

b)

heterogeneous mixture

54.

Chicken noodle soup is an example of a _____________.

a)

homogeneous mixture

b)

heterogeneous mixture

55.

When two or more substances are combined so each can be separated by physical means, the result is a(n) _____.

a)

chemical change

b)

compounds

c)

mixture

d)

element

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