The difference in mass between the nucleus and the protons neutrons, which make up the nucleus, is known as the mass defect. Remember how I said this mass is converted into energy when the nucleus is formed? You can calculate the amount of energy released by using Einstein's equation: E = mc^2 In this case, the mass (m) is the mass defect. This topic is part of the UK's A Level syllabus. Do we have any A Level students here? If so, should I make more videos related to the 🇬🇧 curriculum? | vt.p