Question

Explain why halogens are coloured?

Answer 1

the frequency of these emmited photons for halogens usually lies in the visible range for human eye .and thus we see them coloured

Answer 2

Hey !!

All Halogens are coloured. This is due to absorption of radiation in visible region which results in the excitation of outer electrons to higher energy level while the remaining ligh is transmitted. The colour of the halogen is the colour of transmitted light.

Hope it helps you !!