Question

Define the following terms with

example.

1. Mass Number​

Answer 1

Explanation:

The mass number, also called atomic mass number or nucleon number, is the total number of protons and neutrons in an atomic nucleus. It is approximately equal to the atomic mass of the atom expressed in atomic mass units.

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Answer 2

Answer:

total number of protons and neutrons (together known as nucleons) in an atomic nucleus is called mass number.

It is denoted by A

The mass number is different for each different isotope of a chemical element.

example, an atom of carbon has 6 protons and 6 neutrons. Thus, its mass number is 12.

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