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Worksheetsatomic stuctur
Total questions: 7
Worksheet time: 4mins
Name
Class
Date
1.
The number of protons present in helium is
a)
3
b)
2
c)
5
d)
6
2.
What is the charge of a proton?
a)
positive
b)
negative
c)
neutral
d)
no charge
3.
The Atomic mass of Cl
a)
34.5
b)
35.5
c)
36.5
d)
35.6
4.
Which statement best describes electrons?
a)
They are positive subatomic particles and
are found in the nucleus.
b)
They are positive subatomic particles and
are found surrounding the nucleus.
c)
They are negative subatomic particles and
are found in the nucleus.
d)
They are negative subatomic particles and
are found surrounding the nucleus.
5.
Subatomic particles with a negative charge
a)
Electrons
b)
Neutrons
c)
Protons
d)
Quarks
6.
The sub-atomic particles present in an atom
a)
proton
b)
electron
c)
nucleus
d)
neutron
7.
Valency of carban
a)
2
b)
3
c)
4
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