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Question

The atomic number of sulphur is 16 and its atomic mass is 32. What is the number of neutrons in sulphur?

A
18
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B
8
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C
16
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D
32
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Solution

The correct option is C 16
Atomic number = 16
Number of proton = number of electrons = 16
Mass number = Number of protons + Number of neutrons
Given, Mass number = 32
Number of neutrons = Mass number – Number of protons
= 32 – 16
= 16

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