Chromium - Compounds

Compounds

Oxidation
states
−2 Na2
−1 Na2
0 Cr(C6H6)2
+1 K3
+2 CrCl2
+3 CrCl3
+4 K2CrF6
+5 K3CrO8
+6 K2CrO4

Chromium is a member of the transition metals, in group 6. Chromium(0) has an electronic configuration of 4s13d5, owing to the lower energy of the high spin configuration. Chromium exhibits a wide range of possible oxidation states, where the +3 state is most stable energetically; the +3 and +6 states are most commonly observed in chromium compounds, whereas the +1, +4 and +5 states are rare.

The following is the Pourbaix diagram for chromium in pure water, perchloric acid or sodium hydroxide:

Read more about this topic:  Chromium

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