What does “Mass defect and binding energy” actually mean in Nuclei, and why does it matter for NEET?
A bound nucleus has less mass than its separated nucleons. The missing mass corresponds to the energy released during binding: B = Delta m c^2.
In simple words: A bound nucleus has less mass than its separated nucleons. The missing mass corresponds to the energy released during binding: B = Delta m c^2. Getting Mass defect and binding energy clear matters because NEET questions on Nuclei usually test this idea directly, not just a formula you memorised.
Key point
Mass defect and binding energy
Common mistake
subtracting masses in the wrong direction and obtaining negative binding energy.
Memory tip
separated nucleons minus nucleus gives positive mass defect.
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