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11 Jan 2012 09:54:20 IST

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Nuclei

Physics

my Q. is what does exactly make heavy nuclei unstable?

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edison

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11 Jan 2012 10:32:22 IST

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Heavy nuclei have lower binding energy per nucleon and therefore they undergo fission to form small nuclei with higher binding energy per nucleon.

This is because the heavy nucleus contains many protons packed into a very small volume and coulomb's electrostatic force acts on protons of similar charges. As the electrostatic forces are long range forces and strong nuclear forces are small range forces. Therefore, the coulomb,s electrostatic forces dominates the strong nuclear force making the nuclei unstable.

avinash kumar

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12 Jan 2012 20:40:24 IST

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for more details , please read MESON-THEORY.......

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