Discussion Forum

Which of the following is emitted , when  $^{239}_{94}Pu$ decays into $^{235}_{92}U$?

Answer:

Explanation:

 $^{239}_{94}Pu$ $\underrightarrow{a}$  $^{235}_{92}U$

 When $\alpha$- particle is emitted that atomic mass is decreases by four and atomic number is decreases by two