Calculate the mass defect of the nitrogen nucleus 14 7n. the mass mn of neutral 14 7n is equal to 14.003074 atomic mass units. express your answer in atomic mass units to four significant figures. view available hint(s) nothing uu part b calculate the binding energy eb of the nitrogen nucleus 14 7n. express your answer in millions of electron volts to four significant figures. view available hint(s) ebe b e_b = nothing mev