Unlike the elements of group 1 and group 2. the elements of group 14, donot show close resemblance in their properties because.A. They have different valence shell configurationsB. The Penultimate shell of Group 14 elemants have different configurationsC. All the elemats of Group 14 contain d-electronsD. None of the above

Unlike the elements of group 1 and group 2. the elements of group 14,

1.	Unlike the elements of group 1 and group 2. the elements of group 14, donot show close resemblance in their properties because.A. They have different valence shell configurationsB. The Penultimate shell of Group 14 elemants have different configurationsC. All the elemats of Group 14 contain d-electronsD. None of the above
Answer» Correct Answer - B Group 14 elements have different penultimate shell configuration C has `2es^(-)` , Si has 8, while Sn, Ge and Pb have 18 electrons in their penultimate shell.

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