With the help of example explain how the neutron-proton ratio changes during `alpha-decay` of the nucleus.

The neutron to proton ratio increases during beta -decay. (True /false)

Explain with the help of nuclear reaction in each of the following cases, how the neutron to proton ratio changes during beta decay?

Explain with the help of an example how the percentage cover is more meaningful measure of population than mere numbers.

How many neutrons and protons are there in the following nuclei?

How many neutrons and protons are there in the following nuclei?

How many neutrons and protons are there in the following nuclei?