Question

State the general trend in periodicity in properties of oxides, hydroxides, oxy-acids and hydrides of compounds of elements across a period and down a group.

July 25, 2024

Answer

Below table shows the general trend in periodicity in properties of oxides, hydroxides, oxy-acids and hydrides of compounds of elements across a period and down a group:

	Across a period	Down a group
Oxides	Varies from strongly basic to strongly acidic	Varies from acidic to basic
Hydroxides	Varies from strongly basic to amphoteric	Varies from less basic to strongly basic
Oxy-acids	Varies from weak oxy-acids to strong oxy-acids	Varies from strong oxy-acids to weak oxy-acids
Hydrides	Varies from strongly basic to strongly acidic	Varies from less acidic to more acidic

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