The most abundant isotope of helium has a `._(2)^(4)H` nucleus whose mass is `
Channel: Doubtnut
Date: 2020-07-26

The most abundant isotope of helium has a `._(2)^(4)H` nucleus whose mass is `6.6447 xx 10^(-27) kg` . For this nucleus, find (a) the mass defect and (b) the binding energy.   Given: Mass of the electron: `m_e =5.485799 xx 10^(-4) u`, mass of the proton: `m_(P) =1.007276 u` and mass of the neutron: `m_(n) =1.008 665 u`.