Royal blue is a deep shade of blue that is sometimes associated with tinges of slight red or purple. … Cobalt blue is a shade of color blue that is medium and bright. What color does cobalt make? Cobalt blue’s compound form has silvery, bluish-gray metal ore. As for color,Read More →

Like other transition metals, iron forms coloured compounds. The table shows some examples of these. Note that iron can form two different ions in its compounds. How Coloured compounds are formed? Whenever light falls on the transition element compounds electrons excite and electrons absorb energy and excite. When these electronsRead More →

Cobalt was discovered by Georg Brandt, a Swedish chemist, in 1739. … Cobalt is usually recovered as a byproduct of mining and refining nickel, silver, lead, copper and iron. Although cobalt is used in electroplating to give objects an attractive surface that resists oxidation, it is more widely used toRead More →