Question

Difine binding energy per neucleon and draw graph of its with mass number. OR
Write the Rutherford-Soddi law of radio active decay and draw decay curve.

Answer 1

The iron limit

Iron-56 is abundant in stellar processes, and with a binding energy per nucleon of 8.8 MeV, it is the third most tightly bound of the nuclides. Its average binding energy per nucleon is exceeded only by 58Fe and 62Ni, the nickel isotope being the most tightly bound of the nuclides.