Question

What is the variation of metallic character in group and period according to Modern Periodic Table.​

Answer 1

Variation of metallic character in groups:- Metallic character increases down the group since atomic Radius increases and Ionisation potential decreases so electropositive character increases and is the character of metals.

Variation of metallic character in periods:- Metallic character decreases along the period i.e. from left to right because atomic radius decreases and Ionisation potential increases that's why electropositive character decreases.

Note:- In whole group most electropositive is alkali group (1st group). In it, caesium is the most Metallic element.

Answer 2

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