MHT CET2007PhysicsNuclear Physics
m_ p and m_ n are masses of proton and neutron respectively. An element of mass M has Z protons and N neutrons then
Options
- AM>Z m_ p +N m_ n
- BM=Z m_ p +N m_ n
- CM < Z m_ p +N m_ n
- DM may be greater than less than or equal to Z m_ p +N m_ n , depending on nature of element
Correct answer
C. M < Z m_ p +N m_ n
Step-by-step solution
When a nucleus is formed, then the mass of nucleus is slightly less than the sum of the mass of Z protons and N neutrons. ie, M < (Z m_ p +N m_ n )