Question
Wed March 04, 2015 By: Ravi Consul

Q.In a fusion/fission , the number of neutron and proton remains the same on both sides then how does mass converts into energy?

Expert Reply
Jyothi Nair
Thu March 05, 2015
If the nucleons bound in a nucleaus are seperated from each other, we find that the sum of their masses is greater than the mass of the nucleus. When nucleons are bound in a nucleus, some of the mass gets converted into energy that binds the nucleons together in the nucleus. This energy equal to the binding energy is spent to seperate these nucleons apart from one another. It is this energy that appears in the form of increased mass. 
Home Work Help