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Question
Compare the general characteristics of the first series of the transition metals with those of the second and third series metals in the respective vertical columns. Give special emphasis on the following point:
Electronic configurations
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Solution
In the first transition series, the 3d orbitals are progressively filled; in the second transition series, the 4d orbitals are progressively filled; and in the third transition series, the 5d orbitals are progressively filled.
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