MCQOPTIONS
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| 1. |
According to the nuclear reaction \[_{4}Be{{+}_{2}}H{{e}^{4}}{{\to }_{6}}{{C}^{12}}{{+}_{0}}n{{}^{1}}\], mass number of \[(Be)\] atom is [AFMC 2002] |
| A. | 4 |
| B. | 9 |
| C. | 7 |
| D. | 6 |
| Answer» C. 7 | |