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.​

Answer 1

Answer:

Oxides, hydroxides and oxy-acids: Metals form basic oxides. ... Variations in a Period: On moving from left to right in a Period, metallic character decreases while non-metallic character increases. Thus elements of Group 1, 2 and 13 form basic oxides and their basic character decreases along the period

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Answer 2

Answer:

If these oxides are soluble in water, they form metal hydroxides (alkalies). ... Variations in a Period: On moving from left to right in a Period, metallic character decreases while non-metallic character increases. Thus elements of Group 1, 2 and 13 form basic oxides and their basic character decreases along the period