Radon is formed by emission of `alpha`-particles by

When a radioactive isotope _88Ra^228 decays in series by the emission of 3 alpha particles and a beta particle, the isotope finally formed is

Proton bombardment on Th^(230) followed by emission of two alpha particles will produce:

Emission of an alpha paritcle leads to a

Emission of an alpha paritcle leads to a

Does the ratio of neutrons to protons in a nucleus increase, decrease or remain the same after the emission of alpha-particl es .

The emission of beta particles is from