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  9. Q62

RRB Technician (Grade I Signal + Grade III) 2026 · Question 62 of 265

Which statement is true about mass number?

  1. AIt is always twice the atomic number
  2. BIt is the sum of protons and neutrons in an atomCorrect
  3. CIt is equal to the number of electrons in an atom
  4. DIt is the total number of protons and electrons in an atom

Answer: B. It is the sum of protons and neutrons in an atom

Official answer key verified. Detailed explanation coming soon.

Source: RRB Technician Grade III 06-Mar-2026 Shift 2 (oliveboard compilation with answer key) · reliable-secondary

← Q61View full paper (265 questions)Q63 →

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