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A neuclear transformation is denoted by ...

A neuclear transformation is denoted by `X (n,a) _(3)^(7)Li` Which of the following is the neucleus of electron X?

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)n rarr ._(3)^(7)Li+._(2)^(4)He`
It implies that
`A+1=7+4 rArr A=10`
and `Z +0=3+2 rArr Z =5`
Thus, it is Boron `._(5)^(10) B`
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