Which of the following statements are true regarding electronegativity?

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Electronegativity generally increases across a period in the periodic table from left to right

Electronegativity value increases with the increase in atomic radii down a group

Decrease in electronegativity down a group in the periodic table confirms decreases in non-metallic properties

In a period of the periodic table electronegativity increases with increased metallic character

answer is A.

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Detailed Solution

(a) Electronegativity generally increases across a period from left to right and decreases down a group in the periodic table.(b) Electronegativity value decreases with the increase in atomic radii down a group.(c) More a substance is electronegative more it will have non-metallic character. Hence, down a group metallic character of elements increases with decrease in electronegativity.(d) In a period electronegativity increases with increased non-metallic characters.

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