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(a) What is radioactivity? (b) Mention any two differences between nuclear energy and chemcial energy. |
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Answer» (a) Radioactivity is a self spontaneous disintegration of a heavy nucleus into α, β, and γ radiations. (b) Two differences between nuclear energy and chemical energy are as below: Nuclear energy 1. 1. Nuclear energy is liberated from the nucleus of the atom in which protons and neutrons take part. 2. 2. Nuclear energy produced is tremendous as 1 kg mass gets converted into 9 x 1016 J of energy. Chemical energy 1. Chemical energy is liberated because of electrons which combine or release. 2. A very small amount of energy is released in chemical reactions. It can be absorbed or released. |
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