Difference between revisions of "Binding Energy"
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*[[Binding Energy|Binding energy]] [[measure]]d in [[MeV]]. | *[[Binding Energy|Binding energy]] [[measure]]d in [[MeV]]. | ||
*Indicates the stability of the [[Atomic Nucleus|nucleus]]. | *Indicates the stability of the [[Atomic Nucleus|nucleus]]. | ||
| − | *Higher | + | *Higher [[Binding Energy Per Nucleon|binding energy per nucleon]] implies a more stable [[Atomic Nucleus|nucleus]]. |
*The curve of [[Binding Energy Per Nucleon|binding energy per nucleon]] versus [[mass]] number shows a peak at [[iron]] (Fe-56). | *The curve of [[Binding Energy Per Nucleon|binding energy per nucleon]] versus [[mass]] number shows a peak at [[iron]] (Fe-56). | ||
Revision as of 10:32, 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.
- Indicates the stability of the nucleus.
- Higher binding energy per nucleon implies a more stable nucleus.
- 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.