Question

A certain stable nuclei, after absorbing a neutron, emits $\beta$ -particle and the new nuclide splits spontaneously into two $\alpha$-particles. The nuclei is

• A. ${}_2^{4}He$
• B. ${}_3^{7}Li$
• C. ${}_4^{6}Be$
• D. ${}_3^{6}Li$

Answer 1

The correct option is B ${}_3^{7}Li$