Question

What is induced radioactivity ? Name the radioactive element obtained when ${}_{13}A{l}^{27}$ is bombarded with alpha particle. Write one use of this radioactive element.

Answer 1

• The phenomenon of inducing radioactivity to a previously stable material by exposure to specific radiation is called induced radioactivity.
  
• Bombarding aluminium with alpha particles gives radio phosphorus.
  

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

• It is used in agriculture to determine the kind of phosphate necessary for a given soil and crop.