why are halogens coloured?
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bcoz of d- d transition effect and of high electronegativity
paramveershah:
but halogens ma high electron affinities hote h .High electronegativity nhi hote.
electronegative sabse jayda kaun sa elements hai
chal shud yrr thank you so much
Answered by
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When photons (light particles) of suitable energy hit the atom, the electron gets excited and moves to higher energy states in the atom . Halogens have an unpaired electron that is present in the outermost shell (valence shell) of the atom
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