WorksheetsSubatomic particles 3
Total questions: 6
Worksheet time: 6mins
Name
Class
Date
1.
What does the Atomic Number tell us?
a)
The number of protons in an atom
b)
The number of electrons in the atom
c)
The number of neutrons in an atom
2.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
3.
If an atom has 10 protons, 10 neutrons, and 10 electrons, what is the mass of the atom?
a)
10
b)
20
c)
30
4.
If an atom has 12 protons, which of the following must it also have to be considered a neutral atom?
a)
12 neutrons
b)
12 electrons
c)
12 protons
d)
24 protons and neutrons
5.
What is the mass of an atom if it has 11 protons, 12 neutrons, and 11 electrons?
a)
22
b)
11
c)
34
d)
23
6.
Which is an electron?
a)
A
b)
B
c)
C
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