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An unknown stable nuclide after absorbing a neutron emits an electron, and the new nuclide splits spontaneously into two alpha particles. The unknown nuclide is :A. `._(4)Be^(9)`B. `._(3)Li^(7)`C. `._(2)He^(4)`D. `._(5)B^(10)` |
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Answer» Correct Answer - B `._(3)Li^(7) +._(0)n^(1) rarr ._(-1)e^(0)+2_(2)He^(2)` Hence the inknown nuclide is `._(3)Li^(7)` |
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