Difference between revisions of "Binding Energy"
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*Indicates the stability of the [[Atomic Nucleus|nucleus]]. | *Indicates the stability of the [[Atomic Nucleus|nucleus]]. | ||
*Higher binding [[energy]] per [[nucleon]] implies a more stable [[Atomic Nucleus|nucleus]]. | *Higher binding [[energy]] per [[nucleon]] implies a more stable [[Atomic Nucleus|nucleus]]. | ||
| − | The curve of [[Binding Energy|binding energy]] per [[nucleon]] versus [[mass]] number shows a peak at [[iron]] (Fe-56). | + | *The curve of [[Binding Energy|binding energy]] per [[nucleon]] versus [[mass]] number shows a peak at [[iron]] (Fe-56). |
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===Examples=== | ===Examples=== | ||
*[[Helium]]-4 has a high [[Binding Energy|binding energy]] per [[nucleon]], making it very stable. | *[[Helium]]-4 has a high [[Binding Energy|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 10:23, 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.