is it that in the transition elements, only the d-orbital electrons have to jump to a higher energy state in order for the compounds of these metals to be colored?

Asked by vaishanavi | 19th Oct, 2013, 08:55: PM

Expert Answer:

The color of most of the transition metal compounds is due to the presence of incomplete d-sub shell. When anions or ligands approach transition metal ions, their d orbitals do not degenerate. They split into two sets, one consisting of lower energy orbitals (t2g which includes dxy, dyz and dxz) and the other consisting of higher energy orbitals (eg which includes dx2-y2 and dz2).This is called crystal field splitting. Thus the electrons can jump from lower energy d-orbitals to higher energy d-orbitals.

Answered by Vaibhav Chavan | 21st Oct, 2013, 12:37: PM

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