1.

In the nuclear reaction: \[X(n,\,\alpha ){{\,}_{3}}L{{i}^{7}}\] the term X will be  3 [CBSE PMT 2001; AIEEE 2005]

A.            \[_{5}{{B}^{10}}\]              
B.            \[_{5}{{B}^{9}}\]
C.            \[_{5}{{B}^{11}}\]              
D.            \[_{2}H{{e}^{4}}\]
Answer» B.            \[_{5}{{B}^{9}}\]


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