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Why the elements of 3d series forms coloured ions?

Asked by Topperlearning User 26th June 2014, 1:14 PM
Answered by Expert

When an electron of a lower energy d orbital of the transition metal ion is excited to a higher energy d orbital, the energy of excitation corresponds to the frequency of light absorbed. Since this frequency lies in the visible region hence the corresponding complementary color of the absorbed light can be observed.

Answered by Expert 26th June 2014, 3:14 PM
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