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| Q. |
The mass number of an element is not changed, when it emits radiations. |
| A. | α & γ |
| B. | α, β, & γ |
| C. | α & β |
| D. | β & γ |
| Answer» D. β & γ | |
| Explanation: the mass number of an element is not changed when it emits β & γ radiations. | |
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