Answer to Question #84522 in Inorganic Chemistry for anuj kumar

Question #84522
Explain the trends in the thermal stability of the oxosalts of alkali and alkaline earth metals
1
Expert's answer
2019-01-28T05:17:12-0500

For Group 1 and Group 2 oxosalts the thermal stability increases down the group as the ionic radius of the cation increases, and its polarising power decreases.

Group 1 oxosalts tend to be more thermally stable than Group 2 oxasalts because the cation has a smaller charge and a larger ionic radius, and so a lower polarising power, particularly when adjacent metals on the same period are compared.

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