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Some Basic Concepts of Chemistry — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistrySome Basic Concepts of Chemistry1 Mark
MCQ
Mass number is denoted by:
  • A
    D
  • B
    S
  • C
    A
  • D
    Z
✓

Answer

  1. A

Explanation:

The mass number (A)  is the number of nucleons, which is the total number of protons and neutrons in the nucleus of an atom.

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