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Carbon

The mass numb...

Question

The mass number is defined as the total number of protons and electrons in an atom.

A

True

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B

False

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Solution

The correct option is B False
Majority of mass of an atom is concentrated in its nucleus, which is composed of protons and neutrons. The mass number is defined as the total number of protons and neutrons in an atom. It is denoted by A.

Mass number = Number of protons + Number of neutrons

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