Rubidium Element

Rubidium
Atomic Number	: 37
Atomic Weight	: 85.4678
Boiling Point	: 688^oC
Melting Point	: 39.31^oC
Phase at Room Temperature:	: Solid
Element Classification:	: Metal
Period Number:	: 5
Discovered Year:	: 1861
Discovered by:	: Robert Bunsen and Gustav Kirchhoff .