The mass of a nucleus is

PHYSICS · Subjective · AP · Physics 2: Algebra-based · Modern Physics · Modern Physics

Problem

The mass of a

^4\text{He}

nucleus is

4.00260\,\text{u}

. The masses of a proton and a neutron are

1.00728\,\text{u}

and

1.00866\,\text{u}

respectively. Taking

1\,\text{u} = 931\,\text{MeV}\,c^{-2}

, calculate the binding energy per nucleon of

^4\text{He}

(answer in MeV, correct to one decimal place).