Difference between revisions of "Binding Energy"
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===About Binding Energy of a Nucleus=== | ===About Binding Energy of a Nucleus=== | ||
| − | *[[Binding Energy|Binding energy]] = [[Mass Defect|mass defect]] × [[Speed of Light| | + | *[[Binding Energy|Binding energy]] = [[Mass Defect|mass defect]] × [[Speed of Light|c]]². |
*[[Binding Energy|Binding energy]] [[measure]]d in [[MeV]]. | *[[Binding Energy|Binding energy]] [[measure]]d in [[MeV]]. | ||
*[[Binding Energy|Binding energy]] indicates the stability of the [[Atomic Nucleus|nucleus]] with a higher [[Binding Energy|binding energy]] indicating a more stable [[Atomic Nucleus|nucleus]]. | *[[Binding Energy|Binding energy]] indicates the stability of the [[Atomic Nucleus|nucleus]] with a higher [[Binding Energy|binding energy]] indicating a more stable [[Atomic Nucleus|nucleus]]. | ||
Revision as of 12:55, 22 May 2024
Key Stage 5
Meaning
The binding energy of a nucleus is the work that must be done to separate a nucleus into its constituent neutrons and protons.
About Binding Energy of a Nucleus
- Binding energy = mass defect × c².
- Binding energy measured in MeV.
- Binding energy indicates the stability of the nucleus with a higher binding energy indicating a more stable nucleus.
- binding energy per nucleon represents the energy required to disassemble a nucleus into individual nucleons.
- The curve of binding energy per nucleon versus mass number shows a peak at iron (Fe-56).
Examples
- Helium-4 has a high binding energy per nucleon, making it very stable.
- Nuclear fusion and fission involve changes in binding energy, releasing energy.