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Structure of the Atom — Science STD 9 — Question

Rajasthan BoardEnglish MediumSTD 9ScienceStructure of the Atom1 Mark
Question
Atomic mass number is sum of number of:
✓

Answer

  1. Protons and neutrons
Explanation:
Atomic mass number is sum of number of protons and neutrons in an atom of the element.

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