InterviewSolution
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InterviewSolution
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Which of the following transition metal catios have noble gas core? (a) `Sc^(3+)` (b) `Y^(3+)` (c) `La^(3+)` (d) `Ac^(3+)`A. (i), (ii), (iii)B. (i), (ii), (iii), (iv)C. (i), (ii), (iv)D. (ii), (iii), (iv) |
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Answer» Correct Answer - B After obtaining the electron configuration of the atom (using the building-up principle), remove ns electrons, then `(n-1)d` electrons, until we have the correct positive charge on the ion, e.g., `Sc([Ar]3d^14s^2)rarrSc^(3+)[Ar],Y([Kr]4d^15s^2)rarrY^(3+)([Kr])` |
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