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Atoms and Molecules

Total questions: 39

Worksheet time: 24mins

Name
Class
Date
1.
A subatomic particle that has a positive electric charge
a)
Proton
b)
Neutron
c)
Electron
d)
Isotope
2.
A subatomic particle that orbits an atom's nucleus, has a negative charge, and has very little mass
a)
Proton
b)
Neutron
c)
Electron
d)
Isotope
3.
The smallest unit of an element that still has the properties of that element.
a)
Atom
b)
Adam
c)
Nucleus
d)
Element
4.
The center of an atom, usually made of protons and neutrons
a)
Nucleus
b)
Proton
c)
Atomic Number
d)
Isotope
5.
A subatomic particle that has the same mass as a proton but no electric charge
a)
Neutron
b)
Nucleus
c)
Nuclear
d)
Jimmy Neutron
6.
The number of protons in an atom
a)
Atomic Number
b)
Atomic Proton
c)
Atomic Neutron
d)
Atomic Mass
7.
A substance made up of only one kind of atom
a)
Element
b)
Elementary 
c)
Ellie
d)
Elephant
8.
A table that shows the elements arranged by their atomic numbers
a)
Periodic Table
b)
Dining Room Table
c)
Wooden Table
d)
Occasional Table
9.
Particles found within the atom, mainly protons, neutrons, and electrons.
a)
Subatomic Particles
b)
Submarine Particles
c)
Element
d)
Nucleus
10.
Which of these items is made up of one or more molecules?
a)
Gold
b)
Hydrogen
c)
Salt 
d)
Neon 
11.
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
12.
How many atoms are there in a molecule?
a)
no atoms
b)
1 or more atoms
c)
2 to thousands of atoms
d)
exactly 18 atoms
13.
Two or more atoms chemically bonded together are called a
a)
atom
b)
element
c)
molecule
d)
mixture
14.
How many carbon atoms are there in a methane molecule? 
a)
0
b)
1
c)
4
d)
5
15.
How many hydrogen atoms are there in a water molecule? 
a)
0
b)
1
c)
2
d)
3
16.
What is the total number of atoms in an ammonia (NH3) molecule?
a)
1
b)
2
c)
3
d)
4
17.
Carbon dioxide (CO2) contains how many atoms of oxygen?
a)
0
b)
1
c)
2
d)
3
18.
How many hydrogen atoms are in a molecule of glucose/sugar (C6H12O6)?
a)
6
b)
12
c)
18
d)
24
19.
All ____________ are made up of two or more atoms bonded together.
a)
atoms
b)
molecules
c)
electrons
d)
elements
20.
The smallest unbreakable unit of a compound is called
a)
subscript
b)
proton
c)
formula
d)
molecule
21.
A recipe for a chemical substance is called a ________ _________.
a)
coefficent
b)
chemical formula
c)
Oxygen
d)
atom
22.
H2O2← ?
This number tells the number of atoms present.
a)
coefficient
b)
molecule
c)
subscript
d)
atom
23.
Electrons are___________
a)
Extremely small even in comparison to protons.
b)
part of the nuclues.
c)
Super Positive, like cheerleaders!
d)
very large
24.

Is NO2 an element or a molecule?

a)

element

b)

molecule

25.

Is K an element or a molecule?

a)

element

b)

molecule

26.

Is H an element or a molecule?

a)

element

b)

molecule

27.
Molecule or Not?  N2
a)
molecule
b)
not a molecule
28.
Molecule or Not?  Pb
a)
molecule
b)
not a molecule
29.
Molecule or Not?  CO
a)
molecule
b)
not a molecule
30.

This picture represents...

a)

An element

b)

A molecule

c)

A mixture

d)

A compound

31.

The circles represent atoms. Each color is a different type of atom. This image represents:

a)

An element

b)

A mixture

c)

A compound

d)

An atom

32.

In this diagram, X represents...

a)

A compound

b)

A mixture

c)

An atom

d)

An element

33.

In this diagram, Y represents...

a)

An element

b)

A molecule

c)

A compound

d)

A mixture

34.

In this diagram, Z represents...

a)

An element

b)

A molecule

c)

A compound

d)

A mixture

35.

In this diagram, W represents...

a)

An element

b)

A molecule

c)

A compound

d)

A mixture

36.

This diagram represents...

a)

An element

b)

A molecule

c)

A compound

d)

A mixture

37.

This diagram represents...

a)

An element

b)

A molecule

c)

A compound

d)

A mixture

38.

This diagram represents...

a)

An element

b)

A molecule

c)

A compound

d)

A mixture

39.

This diagram represents...

a)

A mixture

b)

A compound

c)

A molecule

d)

An element

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