In this worksheet, we will practice using the mass defect for a nuclide to calculate the nuclear binding energy per nucleon via the equation E = mc².

**Q1: **

An atom of has a mass of 55.9349 u, including electrons. Calculate, to 3 significant figures, the binding energy per nucleon for this nuclide.

**Q2: **

An atom of has a mass of 18.9984 u, including electrons. Calculate the binding energy per nucleon for this nuclide.

**Q3: **

An atom of has a mass of 4.0026 u, including electrons. Calculate the total binding energy for this nuclide.

**Q4: **

The total mass of one atom of , including electrons, is 59.93079 u. Calculate to 3 significant figures the nuclear binding energy per nucleon in MeV.

**Q5: **

The total mass of one atom of , including electrons, is 18.99840 u. Calculate to 3 significant figures the nuclear binding energy per nucleon in MeV.

**Q6: **

An atom of (mass = 8.0246 u) decays into an atom of (mass = 8.0053 u) by electron capture. Calculate, to 3 significant figures, the energy released by this reaction.

**Q7: **

Helium-4 can be produced by nuclear fusion of lithium-6 with deuterium: The atomic masses of lithium-6, deuterium and helium-4 are 6.01512 u, 2.01410 u and 4.00260 u, respectively. Calculate to 3 significant figures the energy released by this fusion reaction.

**Q8: **

The total mass of one atom of , including electrons, is 3.016049 u. Calculate to 3 significant figures the nuclear binding energy per nucleon for this atom.