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  9. Q692

RRB Junior Engineer / DMS / CMA 2019 · Question 692 of 3719

The sum of the total number of protons and neutrons present in the nucleus of an atom is known as?A) B) Gauss number

  1. AAvogadro number
  2. BGauss number
  3. CAtomic number
  4. DMass numberCorrect

Answer: D. Mass number

Official answer key verified. Detailed explanation coming soon.

Source: RRB JE 2019 CBT-1 (23-May-2019 Shift 1) — cracku.in solved paper with answer key · reliable-secondary

← Q691View full paper (3719 questions)Q693 →

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