Fill in the blanks :

1. In every atom, the positive charge and mass are densely concentrated at the centre of the atom forming its …………
2. Atomic mass unit is defined as 1/12 th of the mass of …………………..atom.
3. z  X^ A here A is …………………………
4. If R is the radius of the nucleus having mass number A, then R is proportional to  A^n where n is ……………………….
5. Density of nuclear matter is the ratio of mass of …………………………..and its…………………
6. Mass defect = mass of ……………   –       mass of ………………
7. Q value = mass defect* ………………………………………….
8. Mass defect = mass of individual nucleons – mass……………………………….
9. 1amu=……………………………………Mev
10. 1amu=……………………………………gram
11. z X^A here Z is …………………………
12. Mass of an electron in kg is………………………………………….
13. Value of 1eV in joule is……………………………
14. z X^A here A-Z is…………………..
15. Binding energy =mass defect (in amu)* …………………

1. For exothermic reaction heat is evolved that is mass defect is ………………………….

That is Q value is ……………………………………….. ( negative/positive)

1. For endothermic reaction heat is absorbed that is mass defect is …………………… that is Q value ………………………………( negative/positive)
2. BE per nucleon is BE divided by ……………………………………………………..