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WorksheetsCC3a Structure of an Atom
Total questions: 10
Worksheet time: 6mins
Name
Class
Date
1.
What is the name of the English chemist who published the first atomic theory?
(a)
2.
All matter is made up of tiny particles called what?
(a)
3.
Atoms cannot be created or destroyed, T/F?
a)
True
b)
False
4.
The atoms in an element are all i (a)
5.
A proton has what charge?
a)
positive
b)
negative
c)
neutral
6.
An electron has what charge?
a)
positive
b)
negative
c)
neutral
7.
The relative mass of a proton is 1. What is the relative mass of a neutron?
a)
1
b)
-1
c)
negligible
8.
What is the centre of an atom called?
(a)
9.
Where are neutrons found in the atom?
a)
Nucleus
b)
Shells
10.
What two subatomic particles are found in the nucleus of an atom?
a)
protons and electrons
b)
electrons and neutrons
c)
protons and neutrons
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