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 [[Binding Energy Per Nucleon|binding energy per nucleon]] implies a more stable [[Atomic Nucleus|nucleus]]. | + | *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). |
===Examples=== | ===Examples=== | ||
| − | *[[Helium]]-4 has a high [[Binding Energy Per Nucleon|binding energy per nucleon]], making it very stable. | + | *[[Helium]]-4 has a high [['''Binding Energy''' Per Nucleon|binding energy per nucleon]], making it very stable. |
*[[Nuclear Fusion|Nuclear fusion]] and [[Nuclear Fission|fission]] involve changes in [[Binding Energy|binding energy]], releasing [[Energy|energy]]. | *[[Nuclear Fusion|Nuclear fusion]] and [[Nuclear Fission|fission]] involve changes in [[Binding Energy|binding energy]], releasing [[Energy|energy]]. | ||
Revision as of 10:33, 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.