The ionic radii of Group 12 metals Zn, Cd and Hg are smaller than thos – InterviewSolution

1.	The ionic radii of Group 12 metals Zn, Cd and Hg are smaller than those of Group 2 metals becouse Zn, Cd and Hg have
Answer» 10D -electrons which shield the nuclear charge poorly 10d-electrons which shield the nuclear charge strongly 10d-electrons which have a large radius ratio 10ltf-electrons which have a large exchange energy Solution :`Zn, CD and Hg` have SMALLER ionic ionic RADII than group - 2 elements because former involve 10 d - electrons which have poor shielding effect so that electrons are more strongly attracted towards NUCLEUS.

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