The Conversation on MSN10d
Why are rubies red and emeralds green? Their colors come from the same metal in their atomic structureEven the color of blood comes from the protein hemoglobin ... But how can one element—chromium—create the red color of a ruby ...
One feature of compounds made with transition metals is their intense colour. There are many examples in nature, including ...
7don MSN
In the hit movie “Wicked,” those famous magical shoes are silver. But if you want to see them in all their ruby-red glory ...
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