Explain about periodic variation of electronegativity across a period.

1.	Explain about periodic variation of electronegativity across a period.
Answer» Solution :As we MOVE from LEFT to right in a period, electronegativity INCREASES. This is due to the following reasons: (a) Nuclear charge increases in a period (b) Atomic size decrease in a period. Halogens have the highest value of electronegativity in their respective PERIODS.

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