An unknown stable nuclide after absorbin...

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 :

`._(4)Be^(9)`

`._(3)Li^(7)`

`._(2)He^(4)`

`._(5)B^(10)`

Text Solution

Verified by Experts

The correct Answer is:

`._(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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