The Student Room Group

What is the colour of Cr3+

When should I say that it's violet blue grey and when should I say that it's green ?
The ion 3+
(edited 5 years ago)
The transition metal is green.
Reply 2
the ion ?
Original post by kurro
The transition metal is green.
Original post by Leah.J
the ion ?

Sorry, I meant the transition metal ion, so yes it is green. :smile:
Reply 4
Original post by kurro
Sorry, I meant the transition metal ion, so yes it is green. :smile:


Oh okay. Can you help me with the colour of Cr(Cl)4 -

Is it green ?
Reply 5
Original post by Leah.J
When should I say that it's violet blue grey and when should I say that it's green ?
The ion 3+

According to OCR A:

https://www.ocr.org.uk/news/content-clarification-for-gcs-chemistry-a-h032-h432/

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