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A nuclear transformation is given by Y ...

A nuclear transformation is given by `Y (n,alpha ) rarr._(3)Li^7` . The nucleus of the element Y is

A

`._(6)^(12)C`

B

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

C

`._(5)^(9)B`

D

`._(4)^(11)Be`

Text Solution

Verified by Experts

The correct Answer is:
B
`._(Z)^(A)X+._(0)^(1)nrarr._(3)^(7)Li+._(2)^(4)He`
It implies that
`A+1=7+4`
`rArrA=10`
and `Z+0=3+2`
`rArr Z=5`
Thus, it is Boron `._(5)^(10)B`
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