MCQOPTIONS
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| 1. |
Artificial elements have been prepared by bombardment reactions in high energy accelerators. What is the mass number of the element X produced in the following nuclear reaction \[_{95}^{249}Cf+_{7}^{15}N{{\to }_{105}}X+4_{0}^{1}n\] [AMU (Engg.) 2002] |
| A. | 261 |
| B. | 264 |
| C. | 260 |
| D. | 257 |
| Answer» D. 257 | |