In the nuclear reaction: $X(n, \alpha)_3 L i^7$ the term X will be 3
Answer & explanation
Correct answer: option 1
$X(n, \alpha){ }_3^7 L i \Rightarrow{ }_Z X^A+{ }_0 n^1 \rightarrow 3 L i^7+{ }_2 He^4$
Z = 3 + 2 = 5 and A = 7 + 4 – 1 = 10
∴ ${ }_5 X^{10} = { }_5 B^{10}$