Q2 of 23 Page 34

Fill in the blanks with suitable words:

The total number of protons and neutrons in the nucleus of an atom is known as ________ .

Mass number (atomic mass)

Explanation: Mass number: The total number of protons and neutrons present in the nucleus of an atom is known as mass number. It is represented by the symbol A.



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Fill in the blanks with suitable words:

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Fill in the blanks with suitable words:

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