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In group 13, electronegativity first dec...

In group 13, electronegativity first decreases from B to Al and then increases marginally down the group. This is because of

A

Increase in the size of the elements

B

Decrease in the ionization energy of the elements

C

Decrease in the electronegativity of the elements

D

Ineffective shielding of the nuclear charge by d-electrons in the case of Ga, In and TI

Text Solution

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The correct Answer is:
D
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