The mass of neutral 16 8o=15.994915u. find the binding energy for 16 8o. express your answer in millions of electron volts to four significant figures.

Mass defect, m = 15.994915 - 8P+8N, Where P = Mass of a of proton = 1.00782503, N = Mass of a neutron = 1.0086649

Substituting,

m = 15.994915 - 8 * (1.00782503+1.0086649) = - 0.13700444

Binding energy = 931.48 MeV*m = 931.48*-0.13700444 = - 127.62 MeV