Rb - Rubidium - periodic table of the elements

Rubidium was discovered in 1861 by Robert Bunsen (not to be confused with Dr. Bunsen Honeydew from the "Muppets") and Kirchoff in Germany.

Atomic number	-	37		Density	g/mL	1	.53
Atomic weight	u	85	.4678	Melting point	K	312	.64
Bonding radius	A	2	.16	Boiling point	K	961
Atomic radius	A	2	.98	Heat of vaporization	kJ/mol	72	.216
Ionization Potential	V	4	.177	Heat of fusion	kJ/mol	2	.192
Electronegativity	-	0	.82	Specific heat	J/gK	0	.363
The oxide is a strong base.				Crystal are body centered cubic.
Electron configuration: [Kr] 5s¹

Other elements of the periodic table

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

H He

Li Be B C N O F Ne

Na Mg Al Si P S Cl Ar

K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr

Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe

Cs Ba La * Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn

Fr Ra Ac ** Rf Db Sg Bh Hs Mt 110 111 112 113

Lanthanides* Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu

Actinides ** Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr