Question

please answer the following question among the following ,the p pie and d pie overlap could
be present in​

Answer 1

Answer:

Suppose a

88

226

Ra nucleus at rest and in ground state undergoes α-decay to a

88

222

Rn nucleus in its excited state. The kinetic energy of the emitted α particle is found to be 4.44MeV.

86

222

Rn nucleus then goes to its ground state by γ-decay. The energy of the emitted γ photon is ____ keV..

[Given : atomic mass of

88

226

Ra=226.005u, atomic mass of

88

222

Rn=222.000u, atomic mass of α particle = 4.000u,1u=931MeV/c

2

,c is speed of light]