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why does transition elements form coloured compounds why do transition elements form coloured compounds class 12 why do transition elements form coloured compounds or ions why does transition metals form coloured compounds why do transition metals form coloured compounds a level chemistry why do transition metals form coloured compounds class 12 why do transition metals form coloured compounds gcse why do transition metals form coloured compounds ib chemistry why do transition metals form colour compounds why does transition elements generally form coloured compounds
