The nucleus of oxygen atom contains 8 protons and 8 neutrons. What is the mass defect in amu? [Given Mass of proton =1.00727 amu Mass of neutron =1.00866 amu and the mass of oxygen nucleus =15.99053 amu .]

Step-by-step solution

The mass defect m of a nucleus is defined as the difference between the sum of the masses of individual nucleons and the actual mass of the nucleus. The formula for mass defect is given by: m = [Z m_p + (A - Z) m_n] - M_ nucleus Given: Number of protons Z = 8 Number of neutrons N = A - Z = 16 - 8 = 8 Mass of proton m_p = 1.00727 amu Mass of neutron m_n = 1.00866 amu Mass of oxygen nucleus M_ nucleus = 15.99053 amu Substituting the values: m = [8 1.00727 + 8 1.00866] - 15.99053 m = [8.05816 + 8.06928] - 15.99053 m =