Question

Actinium ${}_{89}^{227}Ac$ decays to form ${}_{90}^{227}Th$ by emitting a $\beta$-particle.

• A. True
• B. False

Answer 1

The correct option is A True

${}_{89}^{227}Ac{\to }_{90}^{227}Th{+}_1^{0}e$