A certain stable nucleide, after absorbing a neutron, emits β-particle and the new nucleide splits spontaneously into two α-particles. The nucleide is

Question

A certain stable nucleide, after absorbing a neutron, emits β-particle and the new nucleide splits spontaneously into two α-particles. The nucleide is (A)  24 He (B)  37 Li (C)  46 Be (D)  36 Li

Tardigrade Admin · Accepted Answer

After absorbing neutron it undergoes β decay. Also it decays into 2 alpha particles Hence, net charge after β decay must have been 4 Before β decay it must have been 3 Since it was stable initially, it must be a common nucleus of Z=3 which is 37 Li

Q. A certain stable nucleide, after absorbing a neutron, emits $β$ -particle and the new nucleide splits spontaneously into two $α$ -particles. The nucleide is

$_{2}^{4} He$

$_{3}^{7} L i$

$_{4}^{6} B e$

$_{3}^{6} L i$

After absorbing neutron it undergoes $β$ decay.
Also it decays into $2$ alpha particles
Hence, net charge after $β$ decay must have been $4$
Before $β$ decay it must have been $3$
Since it was stable initially, it must be a common nucleus of $Z = 3$ which is $_{3}^{7} L i$

Q. A certain stable nucleide, after absorbing a neutron, emits β-particle and the new nucleide splits spontaneously into two α-particles. The nucleide is

24​He

37​Li

46​Be

36​Li