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Binding energy
A '''binding energy''' is the negative [[potential energy]] (''i.e.'', energy debt) pulling a bound system together.<ref name = "PotEnIsNeg">[http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/phase.html#c4 Why is the Potential Energy Negative?] ''HyperPhysics''</ref><ref>[[w:Frank Shu|Shu, Frank]]. [https://www.google.co.uk/search?tbm=bks&hl=en&q=%22more+binding+energy+means+the+system+is+more+bound%E2%80%94has+greater+%27%27negative%27%27+energy%22 The Physical Universe: An Introduction to Astronomy] University Science Books, 1982, p. 66. "Remember, more binding energy means the system is more bound—has greater ''negative'' energy."</ref> Conversely, an '''unbinding energy''' is the positive actual energy required to disassemble a bound system into separate parts.<ref>Pople, Stephen. [https://books.google.co.uk/books?id=pjIW6QRlugsC&pg=PA100&dq=%22unbinding+energy%22 Advanced Physics Through Diagrams]. OUP, 2001, p. 100. “The term ‘binding energy’ is rather misleading. ‘Unbinding energy’ would be better. 28.3 MeV is the energy needed to unbind the nucleons in helium-4.”</ref>

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==External links==
*[http://hyperphysics.phy-astr.gsu.edu/hbase/nucene/nucbin.html Nuclear Binding Energy]

{{DEFAULTSORT:Binding Energy}}
[[Category:Basic physics ideas]]
[[Category:Cosmology]]
[[Category:Energy]]