JEE Main 2013 Physics question
When Uranium is bombarded with neutrons, it undergoes fission. The fission reaction can be written as : ( energy) where three particles named x are produced and energy Q is released. What is the name of the particle x ?
Answer: (3)
Solution
Charge: 92 = 56 + 36 + 3Z ⇒ Z = 0. Mass: 236 = 141 + 92 + 3A ⇒ A = 1. x is a neutron, option (3).