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  • How does the metallic and non-metallic character vary on moving from left to right in a period?

How does the metallic and non-metallic character vary on moving from left to right in a period?

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Metallic character: The tendency of an element to lose electrons and thereby forming positive ions is called electropositive or metallic character. The elements with lower ionisation energies have a higher tendency to lose electrons; thus, they are electropositive or metallic in their behaviour.

Periodicity: In period, the electropositive or metallic character decreases from left to right in a period. In a group, the electropositive or metallic character increases from top to bottom in a group.

Non-metallic character: The tendency of an element to accept electrons to form an anion is called its non-metallic or electronegative character.

Periodicity: (i) In period: The electronegative or non-metallic character increases while going from left to right in a period.

(ii) In group: The electronegative or non-metallic character decreases while going from top to bottom in a group.

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