Physics

Problem

Given: mass of proton

m_p = 1.007825\,\text{u}

, mass of neutron

m_n = 1.008665\,\text{u}

, atomic mass of

^4_2\text{He}

nucleus

m(^4_2\text{He}) = 4.002603\,\text{u}

. (1 u

= 931\,\text{MeV}/c^2

). Calculate the binding energy per nucleon of the

^4_2\text{He}

nucleus (in MeV, correct to two decimal places). a)

7.68\,\text{MeV}

6.84\,\text{MeV}

7.07\,\text{MeV}

28.30\,\text{MeV}