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Atomic Number

The mass numb...

Question

The mass number $(A)$ of nucleus as compared to its charge number $(Z)$ is

A

always greater

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B

always less

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C

sometimes equal

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D

sometimes equal and somtimes more

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Solution

The correct option is D sometimes equal and somtimes more
Hydrogen has both $A$ and $Z$ equal.
Others have $A > Z$

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