1.

Noble gases do not react with other elements becauseA. the size of their atom is very smallB. they are found in abundanceC. there electrons are completlely parired up and they have completely filled electron subshellsD. they are monoatomic

Answer» Correct Answer - 3
All the subshells are completely filled and all the electrons are paired leading to very high `Delta_(i)H_(l)` and positive `Delta_(eg)H`.


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