21. Nuclear Chemistry

For an atom of oxygen-18 (18 8O), the mass defect can be converted to an equivalent binding energy (E_b) using Einstein's equation. Which of the following expressions correctly represents the binding energy of the nucleus?

Helium-3, an electron, a neutron, and a proton have masses of 3.016029 amu, 5.486 × 10^-4 amu, 1.00866 amu, and 1.00728 amu, respectively. What is the mass defect for the formation of helium-3 in amu?