https://www.khanacademy.org/science/in-in-class-12th-physics-india/nuclei/in-in-nuclear-physics/v/mass-defect-and-binding-energy 2021-01-04T18:35:19Z Mass defect and binding energy Nuclear binding energy is the energy required to split an atom’s nucleus into protons and neutrons. Mass defect is the difference between the predicted mass and the actual mass of an atom's nucleus. The binding energy of a system can appear as extra mass, which accounts for this difference. Jay video https://cdn.kastatic.org/googleusercontent/_1kyHMdSM9rvHuwzKCMLhCxboGbX6T1-sC0F6yGAavlgAuEJRUkUCqpsyBdEmJnJm6ALT02ri0iY2_e8gCHDcABU Mass defect and binding energy Nuclear binding energy is the energy required to split an atom’s nucleus into protons and neutrons. Mass defect is the difference between the predicted mass and the actual mass of an atom's nucleus. The binding energy of a system can appear as extra mass, which accounts for this difference. https://cdn.kastatic.org/ka-youtube-converted/9b8qZ6OHZ5s.mp4/9b8qZ6OHZ5s.mp4 688 Nuclei https://www.khanacademy.org/science/in-in-class-12th-physics-india/nuclei/in-in-nuclear-physics/v/binding-energy-graph 2021-02-07T17:17:12Z Binding energy graph Let's explore the graph of binding energy per nucleon vs Mass number, and make predictions of the nature of nuclear force, and nuclear reactions (fission & fusion) Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Binding energy graph Let's explore the graph of binding energy per nucleon vs Mass number, and make predictions of the nature of nuclear force, and nuclear reactions (fission & fusion) https://cdn.kastatic.org/ka-youtube-converted/kVqCLiRmom4.mp4/kVqCLiRmom4.mp4 710 Nuclei https://www.khanacademy.org/science/in-in-class-12th-physics-india/nuclei/in-in-half-life-and-decay-rate/v/worked-example-fraction-of-undecayed-nuclei 2022-11-26T10:05:40.67481536Z Worked example: Fraction of undecayed nuclei In this video, we calculate the fraction of undecayed nuclei, of known half-life, at a given time. Vibhor Pandey video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Worked example: Fraction of undecayed nuclei In this video, we calculate the fraction of undecayed nuclei, of known half-life, at a given time. https://cdn.kastatic.org/ka-youtube-converted/Ho1MOi3_hp0.mp4/Ho1MOi3_hp0.mp4 163 Nuclei https://www.khanacademy.org/science/jnv-board-preparation-class-12-physics/x194606e36b639209:week-3/x194606e36b639209:nuclei/e/nuclei 2026-04-08T00:36:09.500768563Z Nuclei Let's practice! vibhor exercise