Write one point that differentiates nuclear reactions from chemical reactions.
|No.||Chemical reactions||Nuclear reactions|
|1.||Rearrangement of atoms by breaking and forming of chemical bonds.||Elements or isotopes of one element are converted into another element in a nuclear reaction.|
|2.||Different isotopes of an element have same behaviour.||Isotopes of an element behave differently.|
|3.||Only outer shell electrons take part in the chemical reaction.||In addition to electrons, protons, neutrons, other elementary particles may be involved.|
|4.||The chemical reaction is accompanied by relatively small amounts of energy.
e.g. chemical combustion of 1.0 g methane releases only 56 kJ energy.
|The nuclear reaction is accompanied by a large amount of energy change. e.g. The nuclear transformation of 1 g of Uranium – 235 release 8.2 × 107 kJ|
|5.||The rates of reaction are influenced by temperature, pressure, concentration, and catalyst.||The rate of nuclear reactions is unaffected by temperature, pressure, and catalyst.|
Concept: Nuclear Reactions
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