The mass number of a nucleus is Options: A . &nbspalways less than its atomic number B . &nbspthe sum of the number of protons and neutrons present in the nucleus C . &nbspalways more than the atomic weight D . &nbspa fraction

The mass number of a nucleus is

Question

The mass number of a nucleus is

Options:

A . always less than its atomic number

B . the sum of the number of protons and neutrons present in the nucleus

C . always more than the atomic weight

D . a fraction

Answer: Option B
Answer: (b).the sum of the number of protons and neutrons present in the nucleus

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