Worksheet: Nuclear Binding Energy

In this worksheet, we will practice calculating the mass defect and the nuclear binding energy for different nuclei.

Q1:

A helium-4 nucleus contains two protons and two neutrons. A proton has a mass of 1.00728 u and a neutron has a mass of 1.00866 u. A helium-4 nucleus has a mass of 4.00260 u. What is the difference between the mass of a helium-4 nucleus and the total mass of its nucleons? Give your answer to 6 significant figures.

  • A 0.0320400 u
  • B 0.0292800 u
  • C 0.0265200 u
  • D 1.98666 u
  • E 0.979380 u

Q2:

3 1 1 5 P is an isotope of phosphorus with an isotopic mass of 30.9738 u. Calculate the binding energy of 3 1 1 5 P . Give your answer to 3 significant figures.

  • A 3 . 7 6 × 1 0 J
  • B 4 . 4 0 × 1 0 J
  • C 4 . 6 3 × 1 0 J
  • D 4 . 0 9 × 1 0 J
  • E 4 . 0 7 × 1 0 J

Q3:

An isotope has a mass defect of 1.20 u. Calculate the isotope’s binding energy. Give your answer to 3 significant figures.

  • A 5 . 9 8 × 1 0 J
  • B 1 . 4 9 × 1 0 J
  • C 1 . 7 9 × 1 0 J
  • D 4 . 9 8 × 1 0 J
  • E 3 . 5 7 × 1 0 J

Q4:

A fluorine-19 nucleus contains nine protons and ten neutrons. A proton has a mass of 1.00728 u and a neutron has a mass of 1.00866 u. A fluorine-19 nucleus has a mass of 18.9984 u. What is the difference between the mass of a fluorine-19 nucleus and the total mass of its nucleons? Give your answer to 6 significant figures.

  • A 1.16100 u
  • B 0.139920 u
  • C 0.153720 u
  • D 0.166140 u
  • E 0.152340 u

Nagwa uses cookies to ensure you get the best experience on our website. Learn more about our Privacy Policy.