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Explain Mass Number with Examples. - CBSE Class 9 - Science

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Question

Explain Mass number with examples.

Solution

Mass number :-

The mass number of an element is the sum of the number of protons and neutrons present in the atom of that element. For example, the atom of boron has 5 protons and 6 neutrons. So, the mass number of boron is 5 + 6 = 11.

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APPEARS IN

 NCERT Solution for Science Textbook for Class 9 (2018 to Current)
Chapter 4: Structure of the Atom
Q: 8.2 | Page no. 55
Solution Explain Mass Number with Examples. Concept: Mass Number.
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