Heavy Water

Why did allied soldiers in World War Two embark on a dangerous mission to stop the Nazis using heavy water? Chemistry - Atoms And Bonding - Learning Points. Atoms that have the same number of protons and electrons but different numbers of neutrons are called isotopes. Hydrogen has two isotopes, deuterium has 1 neutron and tritium has 2 neutrons. Deuterium atoms have more mass than normal hydrogen atoms. Deuterium is used to produce heavy water, which is essential in the production of nuclear bombs. A Twig Context Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show abstract concepts in action in the real world.