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प्रश्न
What happens to the mass number of an element when (i) an α -particle, (ii) a β -particle, and (iii) γ -radiation is emitted?
उत्तर
- When an α particle is emitted mass number decreases by 4.
- When a β particle is emitted there is no change in the mass number.
- When a γ radiation is emitted there is no change in the mass number.
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