Rb

RUBIDIUM

Definition From 'rubidius' or red. it is found in small quantities of tea, coffe, tabacco and other plants.

Discovery 1860 by Robert wilhelm bransen of germany

Uses thermoelectric, gas scavenger in vacuum

Group of Elements Alkali metals(Solid)

Atomic Weight 85.4678

Oxidation State +1

Melting Point 38.9

Boiling Point 686

Density 1.53 g/cm3