The isotope `_(5)^(12) B` having a mass `12.014 u undergoes beta - decay to _(6)^(12) C _
Channel: Doubtnut
Date: 2020-07-05

The isotope `_(5)^(12) B` having a mass `12.014 u undergoes beta - decay to _(6)^(12) C _(6)^(12) C `has an excited state of the nucleus `( _(6)^(12) C ^(**) at 4.041 MeV` above its ground state if `_(5)^(12)E decay to _(6)^(12) C ^(**) ` , the maximum kinetic energy of the `beta - particle `in unit of `MeV is (1 u = 931.5MeV//c^(2)` where is the speed of light in vacume ) .