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Define Mass Number

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Question

Define: Mass number

Definition
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Solution

Mass number— Mass number is the sum of the number of protons and neutrons present in the nucleus of an atom. It is denoted by A.

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Chapter 4: Atoms, Molecules and Radicals - Additional questions

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Selina Concise Chemistry [English] Class 7 ICSE
Chapter 4 Atoms, Molecules and Radicals
Additional questions | Q 1.4

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