What is a mass defect?

Mass defects

1. The loss of mass after the fission process is termed mass defects.
2. Mass defects are defined as the difference between the original mass of the nucleus and the sum of the masses of the products formed following fission.
3. The mass defect is represented by $∆m$.
4. $$\begin{gathered} \mathbf{∆}\mathit{m}\mathbf{=}\mathit{M}\mathbf{-}\mathit{A} \\ \text{Here,} \\ M\text{is mass of original nucleus} \\ A\text{is sum of masses of producted formed} \end{gathered}$$