WorksheetsAtomic Structure
Total questions: 6
Worksheet time: 7mins
Name
Class
Date
1.
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
2.
Which part of an atom is used to identify it?
a)
number of protons
b)
number of neutrons
c)
number of electrons
3.
An atom has 10 protons, 15 neutrons and 10 electrons what is its mass number.
a)
20
b)
10
c)
35
d)
25
4.
Isotopes of an element have a different number of...
a)
Protons
b)
Neutrons
c)
Electrons
d)
Mass
5.
The relative mass of a proton/neutron is.....
a)
0
b)
1
c)
2
d)
3
6.
What is the mass number defined as?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
100 %
