Question

When ${}_{13}A{l}^{27}$ is bombarded with $\alpha$ -particles a radioactive isotope of ${}_{15}{P}^{30}$ with the emission of ............... is formed

• A. Protons
• B. Neutrons
• C. Positrons
• D. Electrons

Answer 1

Answer: (B)

Neutrons

${}_{13}A{l}^{27}{+}_{2}H{e}^4{\to }_{15}P{b}^{30}{+}_0{n}^1$