Question

Why the transition metals generally form coloured compound ?

Answer 1

Explanation:

The reason why transition metal in particular are colorful is because they have unfilled or either half filled d orbitals. There is Crystal field theory which explains the splitting of the d orbital, which splits the d orbital to a higher and lower orbital. Now, the electrons of the transition metal can "jump".

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Answer 2

• When light falls on the transition element compounds electrons excite and electrons absorb energy and excite.
• When these electrons de-excite they release visible light wavelength.