Question

Is Chromate And Chromium The Same Thing?

Answer 1

Chrome and chromium are not the same substances but they are related to each other.

• Chromium (Cr) is element number 24 on the periodic table and It is a transition metal.
• The electron configuration of chromium is [Ar]3d⁵4s¹, whose d-orbital is half-filled.
• Chromium is a lustrous, hard metal with a silver-grey color. Its melting point is high.
• A thin oxide layer of chromium protects the metal from corrosion because it is impervious to oxygen.
• Chromate ($Cr{O}_4^{2-}$) is a chromium oxoanion obtained as a result of the removal of two protons from chromic acid.
• It has a role as an oxidizing agent. It is a divalent inorganic anion and a chromium oxoanion.
• There is also a variation known as dichromate salts which contain the dichromate ion.
• Its anion acts as a firm oxidizing agent in acidic solutions.