WorksheetsThe Atom
Total questions: 10
Worksheet time: 9mins
Name
Class
Date
1.
Where are electrons of an atom found?
a)
Nucleus
b)
Electron Cloud
c)
Some are in the nucleus and some in the electron cloud.
d)
They are moving everywhere.
2.
Which of the following is a positively charged subatomic particle found in the nucleus of an atom?
a)
Electron
b)
Proton
c)
Neutron
d)
Quark
3.
An atom has an atomic number of 15 and a mass number of 31. How many protons are there in the atom?
a)
15
b)
31
c)
16
d)
47
4.
What carries no charge
a)
Neutrons
b)
Electrons
c)
Protons
5.
What is the Atomic Mass?
a)
6.941
b)
7
c)
3
d)
6
6.
How many Protons are in one atom of Lithium?
a)
3
b)
6
c)
7
d)
6.941
7.
Which is the smallest?
a)
electron
b)
proton
c)
atom
d)
neutron
8.
An atom has 5 protons and 7 neutrons. What is the mass number of the atom?
a)
5
b)
7
c)
2
d)
12
9.
What is in the nucleus of an atom?
a)
Neutrons and protons
b)
Protons
c)
Protons and Electrons
d)
Electrons and Nuetrons
10.
An atom has an atomic number of 19 and a mass number of 29. How many neutrons are in the atom?
a)
30
b)
19
c)
10
d)
38
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