Question

Electro negativity down the group decreases in group 13 in PT .Why??

Answer 1

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❏Hence, the electrons in Ga experience more force of attraction than in Al causing a decrease in atomic size and increase in electronegativity. ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀Thus, Electronegativity decreases from B to Al and then increases due to discrepancies of an atomic size of the elements

Answer 2

Explanation:

we know that size is inversely proportional to electronegetivity....so as we go down in a group size increases becz of addition of shells and electro negativity decreases