Cobalt was discovered by Georg Brandt at 1735 in Sweden.
Origin of name: from the German word "kobald" meaning "goblin" or evil spirit.
Atomic Number: 27
Atomic Weight: 58.933195
Melting Point: 1768 K (1495°C or 2723°F)
Boiling Point: 3200 K (2927°C or 5301°F)
Density: 8.86 grams per cubic centimeter
Phase at Room Temperature: Solid
Element Classification: Metal
Period Number: 4 Group Number: 9 Group Name: none