MCQ
The mass of an $\alpha$-particle is
- ✓Less than the sum of masses of two protons and two neutrons
- BEqual to mass of four protons
- CEqual to mass of four neutrons .
- DEqual to sum of masses of two protons and two neutrons
✓
Answer
Correct option: A.
Less than the sum of masses of two protons and two neutrons
a
(a)This is due to mass defect because a part of mass is used in keeping the neutrons and protons bound as $\alpha - $particle.
(a)This is due to mass defect because a part of mass is used in keeping the neutrons and protons bound as $\alpha - $particle.
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