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Structure of Atom — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistryStructure of Atom1 Mark
MCQ
Mass number is also called as __________.
  • A
    Weight
  • B
    Molecular weight
  • C
    Both A and B
  • D
    Atomic mass number
✓

Answer

  1. Atomic mass number

Explanation:

The mass number (A), also called atomic mass number or nucleon number, is the total number of protons and neutrons (together known as nucleons) in an atomic nucleus. It determines the atomic mass of atoms.

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