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Periodic Table Group 13 Electronegativity Trend

1

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The electronegativity trend in Group 13 becomes irregular below aluminium mainly because of:

Verified Answer & Explanation⌄

Correct Answer: A) Poor shielding by inner d- and f-electrons

Concept Explanation

Poor shielding by d- and f-electrons increases effective nuclear charge and causes irregular electronegativity values in heavier Group 13 elements.

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