'Chemically like iron, this element, symbol "Co", is used in a blue pigment'
Cobalt
THE ELEMENTS: Chemically like iron, this element, symbol Co, is used in a blue pigment
Chemically like iron, this element, symbol "Co", is used in a blue pigment
Chemically like iron, this element, symbol "Co", is used in a blue pigment
THE ELEMENTS
Cobalt
THE ELEMENTS