Select correct statement (s):

Options

A. The emission of gamma radiation involves transition between energy levels within the nucleus.
B. `._(2)^(4) He` is formed due to emission of beta particle from tritium `._(1)^(3)H`.
C. When positron `(._(+1)^(@)e)` is emitted , `(n)/(p)` ratio increases.
D. None of these

Answer

A, C

Explanation

Emission of gamma radiations involves emission of energy only . i. e. transition between energy levels within the nucleus.
`._(1)H^(3) rarr -(2)He^(3)+ _(-1)e^(0)`
During position decay, a proton gets converted into a neutron & a positron
`._(1)P^(1) rarr ._(0)n^(1) +._(1)e^(0)`
So `(n)/(P)` ratio increases