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2. structure of atom — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry2. structure of atom1 Mark
MCQ
The nucleus of helium contains
  • A
    Four protons
  • B
    Four neutrons
  • ✓
    Two neutrons and two protons
  • D
    Four protons and two electrons
✓

Answer

Correct option: C.
Two neutrons and two protons
c
(c) Nucleus of helium is $_2H{e^4}$ mean $2$ neutrons and $2$ protons.

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