Question

Q 18. Explanation for the irregular trend in the ionization
enthalpies of group 13 elements.​

Answer 1

Answer:

The observed discontinuity in the ionization enthalpy values between Al and Ga, and between In and Tl are due to inability of d- and f-electrons ,which have low screening effect, to compensate the increase in nuclear charge.

Answer 2

Answer:

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Explanation:

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