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Following the transition elements, (IE)1 drops abruptly in Ga, In and Tl. This is due to :- 1. Decrease in effective nuclear charge. 2. Increases in atomic radius. 3. Removal of an electron from the singly occupied np orbitals of higher energy than the ns-orbitals of Zn, Cd and Hg. 4. None is correct. With explanation. |
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Answer» Following the transition elements, (IE)1 drops abruptly in Ga, In and Tl. This is due to :- 1. Decrease in effective nuclear charge. 2. Increases in atomic radius. 3. Removal of an electron from the singly occupied np orbitals of higher energy than the ns-orbitals of Zn, Cd and Hg. 4. None is correct. With explanation. |
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