Physics, asked by shaikhfarzana21778, 10 months ago

114) Atomic mass number of an element = ?
(1) Atomic mass number = Protons + Electrons
(2) Atomic mass number = Protons + Neutrons.
(3) Atomic mass number = No. of protons.
(4) Atomic mass number = Neutrons + Electrons.

correct alternative

Answers

Answered by sudharanigasti

4

Answer:

1 atomic mass number=protons + neutrons

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