Question

The number of neutrons accompanying the formation of $^{139}_{54}Xe \, \, and \, \, ^{94}_{38}Sr$ from the absorption of a slow neutron by $^{235}_{92}U,$ followed by nuclear fission is

• A. 0
• B. 2
• C. 1
• D. 3

Answer 1

Answer: (B)

2

Answer 2

The balanced nuclear reaction is
\hspace10mm 2 ^{}_{0}n^{1} + \, ^{}_{92}U^{235} \longrightarrow \, \, ^{}_{54}Xe^{139} + \, ^{}_{38}Sr^{94}