MCQ
Which of the following subatomic particle is lightest?
- ANeutron
- BAlpha particle
- CElectron
- DDeuterium
✓
Answer
- Electron
Explanation:
Alpha particle has highest mass of the given option which is he rest mass of the alpha particle amounts to 6.64424 × 10−27kg.
Mass of neutron is 1.0086654 a.m.u.
Mass of electrons = 9.10938291 × 10−31 kilograms.
Hence mass of alpha particle is greatest.
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