WorksheetsATOMIC STRUCTURE
Total questions: 20
Worksheet time: 16mins
Name
Class
Date
1.
The center of an atom is known as the
a)
nucleus
b)
electron cloud
c)
neutron cloud
d)
mass circle
2.
These particles have a mass of 1 amu
a)
protons and neutrons
b)
protons and electrons
c)
neutrons and electrons
3.
Protons have this type of charge
a)
positive
b)
negative
c)
neutral - no charge
4.
A particle that orbits around the nucleus is a(n)...
a)
Proton
b)
Neutron
c)
Electron
d)
Quark
5.
What does the nucleus of an atom contain?
a)
Electrons and neutrons
b)
Protons and neutrons
c)
Neutrinos and positrons
d)
Electrons and megatrons
6.
What are the 3 subatomic 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
7.
This subatomic particle has basically no mass
a)
protons
b)
neutrons
c)
electrons
d)
protons and neutrons
8.
Neutrons have this type of charge
a)
positive
b)
negative
c)
neutral - no charge
9.
The atomic number of an atom is the number of
a)
protons in its electron cloud
b)
protons in its nucleus
c)
neutrons in its nucleus
d)
electrons and neutrons in the nucleus
10.
All matter is made of what?
a)
energy
b)
atoms
c)
volume
d)
compounds
11.
An atom with atomic number 6 would have how many protons?
a)
6
b)
12
c)
3
d)
cannot be determined
12.
Electrons have this type of charge
a)
positive
b)
negative
c)
neutral - no charge
13.
The two areas of an atom are the
a)
nucleus and electron cloud
b)
proton cloud and nucleus
c)
inside and outside
d)
mass and volume
14.
How many atoms are in this molecule?
a)
1
b)
2
c)
3
d)
4
15.
The mass of one proton is greater than the mass of one...
a)
neutron
b)
electron
16.
Which letter represents a proton?
a)
A
b)
B
c)
C
d)
D
17.
Which letter represents a neutron?
a)
A
b)
B
c)
C
d)
D
18.
Which letter represents an electron?
a)
A
b)
B
c)
C
d)
D
19.
Which letter represents the nucleus?
a)
A
b)
B
c)
D
d)
E
20.
What is an atom mostly made up of?
a)
protons
b)
electrons
c)
empty space
d)
neutrons
100 %
