Unlike the elements of group 1 and group 2. the elements of group 14, donot show close resemblance in their properties because.
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 configurations
B. The Penultimate shell of Group 14 elemants have different configurations
C. All the elemats of Group 14 contain d-electrons
D. None of the above
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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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