MCQOPTIONS
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| 1. |
In a radioactive decay, an emitted electron comes from [CBSE 1994; Pb. PET 1999] |
| A. | Nucleus of the atom |
| B. | Inner orbital of the atom |
| C. | Outermost orbit of the atom |
| D. | Orbit having principal quantum number one |
| Answer» B. Inner orbital of the atom | |