noun[mass noun] Physics
The energy that holds a nucleus together. This is equal to the mass defect of the nucleus.
- It's not until you get into the elements heavier than lead (all of which are radioactive) that you find nuclei whose binding energy per nucleon is low enough that the fission fragments could tunnel apart.
- Hence, the holding together of protons and neutrons in a nucleus can also be explained by the concept of binding energy and mass defect.
- The object must have greater energy than its gravitational binding energy to escape the earth's gravitational field.
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