Embibe Experts Solutions for Exercise 2: Assignment

Calculate the energy equivalent of one amu.

Name two radioactive elements which are not found in observable quantity in nature. Why is it so?

Explain, with the help of a nuclear reaction in each of the following cases, how the neutron to proton ratio changes during (ii) $\beta$ -decay ? 

Draw a graph showing the variation of potential energy of a pair of nucleons as a function of their separation. Indicate the region in which the nuclear force is attractive .

Energy released per fission of nucleus is of the order of $200 \mathrm{MeV}$ whereas that perfusion is of the order of $10 \mathrm{MeV}$. But a fusion bomb (hydrogen bomb) is said to be more powerful than a fission bomb. Explain why? 

Define half-life of a radioactive substance.

What are thermal neutrons?

  A neutron is absorbed by a ${}_3{}^6\mathrm{Li}$ nucleus with the subsequent emission of an alpha particle.
    Write the corresponding nuclear reaction.