Vanadium - The Chameleon Metal!
So, today I will tell you about such a metal as vanadium.
Vanadium is a transition metal that is located in the fifth group of the periodic table of chemical elements.
One of the fascinating things is that in air vanadium gets covered with a beautiful film of vanadium oxides, which gives the metal a very beautiful multicolored look.
Different colors can be seen due to the different thickness of the oxide film all around, because of that light in different areas is absorbed and reflected at different wavelengths.
Pieces of vanadium look very beautifully.
However, the oxide film on the vanadium surface can be dissolved with nitric acid, after which the silver surface of this metal can be seen.
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