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The mass number of a nucleus is...

The mass number of a nucleus is

A

always less than its atomic number

B

always more than its atomic number

C

always equal to its atomic number

D

sometimes more than and sometimes equal to its atomic number

Text Solution

Verified by Experts

The correct Answer is:
d
The mass number of a nucleus is more than its atomic number, but in hydrogen, atomic number and mass number are equal.
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