What family does the element Cobalt belong to?
• Cobalt is a hard, lustrous, gray metal, a chemical element with symbol Co and atomic number 27. • Cobalt-based colors and pigments have been used since ancient times for jewelry and paints, and miners have long used the name kobold ore for some minerals. • It is found various metallic-lustered ores, for example cobaltite (CoAsS), but is mainly produced as a by-product of copper and nickel mining.
