Physics

Problem

The atomic mass of a helium nucleus

^{4}_{2}\mathrm{He}

4.001506\,\text{u}

. Take the masses of a proton and a neutron as

1.007276\,\text{u}

and

1.008665\,\text{u}

respectively. Calculate the binding energy of the helium nucleus (answer to the nearest

0.1\,\text{MeV}

\bigl(1\,\text{u}=931.5\,\text{MeV}/c^{2}\bigr)

a) 7.1\,\text{MeV} b) 29.3\,\text{MeV} c) 28.3\,\text{MeV} d) 2.8\,\text{MeV}