Rubidium

Symbol

Rb

Atomic number

37

Atomic mass	85.4678		Thermal conductivity	0.582
Atomic radius	2.98		Covalent radius	2.16
Density	1.53		Atomic volume	55.9
Melting point	312.04		Oxidation states	1
Boiling point	961		Stable isotopes	2
Heat of vapor.	72.216		Electronegativity	0.82
Heat of fusion	2.192		First ionization	4.177
Specific heat	0.363		Electrical conduct.	...

Electron configuration

Rubidium

Rubidium is a silvery white, very active metal as are the other alkali metals.

Rubidium compounds are very similar to those of potassium, so they do not have notably unique applications.

Rubidium itself might have been considered to be unremarkable as an element until it was used to demonstrate a new state of matter in 1995. Cornell and Wieman received the 2001 Nobel Prize for Physics by demonstrating a Bose-Einstein condensate with dilute, supercooled rubidium atoms.

Rubidium Nuclear Data