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

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

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

A radioactive nucleus is represneted by the symbol _bX^a ,How is the new ucleus represented after the emission of an alpha particle

A radioactive nucleus is represneted by the symbol _bX^a ,How is the new ucleus represented after the emission of a beta particle

An isolated conducting sphere is given a positive charge. Does its mass increases, decreases or remains the same?

The ratio of specific charge of a proton and an alpha-particle is :