Transition Elements (3)

Colour of solution of transition element ions [Chromium(III) ion, Cr3+(aq)]

Green

Colour of solution of transition element ions [ichromate(VI) ion, Cr2O72–(aq)]

Orange

Colour of solution of transition element ions [Manganese(II) ion, Mn2+(aq)]

Pink

Colour of solution of transition element ions [Manganate(VII) ion, MnO4–(aq]

Purple

Colour of solution of transition element ions [Iron(II) ion, Fe2+(aq)]

Green

Colour of solution of transition element ions [Iron(III) ion, Fe3+(aq)]

Brown

Colour of solution of transition element ions [Copper(II) ion, Cu2+(aq)]

Blue

Special Characteristics for Several Transition Elements in the Periodic Table of Elements (3)

Transition elements have more than one oxidation number

Special Characteristics for Several Transition Elements in the Periodic Table of Elements (4)

Transition elements can form complex ions

Uses of transition elements such as iron (Fe) in industries

Iron, Fe is used in the Haber Process to produce ammonia, NH3