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Subjects
Science State Board
Class 7
Atomic structure
The structure and types of atom
8.
Numerical based on mass number
Exercise condition:
3
m.
Solve the question given below
:
1.
Boron
atom has
5
protons and
6
neutrons. Find its atomic mass or mass number.
Answer
: The atomic mass or mass number of
Boron
is
.
1
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