State Soddy and Fajans displacement law.

Explain the principle & structure of atom bomb.

Explain the uses of radio isotopes in medicine field?

Distinguish between Nuclear fission and nuclear fusion.

What are the precautions to be taken by people working in radiation labs?

Explain the process of controlled and uncontrolled chain reactions.

Compare the properties of alpha, beta and gamma radiations.

Mass number of a radioactive element is 232 and its atomic number is 90. When this element undergoes certain nuclear reactions, it transforms into an isotope of lead with a mass number 208 and an atomic number 82. Determine the number of alpha and beta decay that can occur.

' X – rays should not be taken often'. Give the reason.

Cell phone towers should be placed far away from the residential area – why?