mass defect and binding energy 0.0 / 5 ? PhysicsNuclear physicsA2/A-levelAQA Created by: syaqub18Created on: 28-04-15 14:10 What is mass defect? Difference between the mass of the nucleus and the mass of its constituents (mass of nucleus is less) 1 of 10 What is Einstein’s equation? E=mc^2 2 of 10 What does Einstein’s equation assume? That energy and mass are equivalent 3 of 10 What happens when nucleons are joined together? Total mass decreases, lost mass is converted in to energy and released, the amount of energy released is the mass defect 4 of 10 How much energy would you need to pull apart a nucleus? The energy which was released to join the nucleus (mass defect) 5 of 10 What is the binding energy? Energy needed to separate all nucleons in a nucleus which is equivalent to the mass defect 6 of 10 What is one atomic mass equivalent to? 931.5 MeV 7 of 10 How do you work out the binding energy per nucleon? Binding energy per nucleon = (Binding energy AKA mass defect)/ nucleon number 8 of 10 What is the most stable nucleus? Iron which has nucleon number 56 9 of 10 What does a high binding energy mean? A more stable nucleus 10 of 10
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