Symbol	Ru	Atomic radius: pm	133	Fusion: kJ/Mole	38.59
Name	Ruthenium	Ionic radius: pm	(+3)68	Boiling point: °C	4150
Atomic number	44	Electron affinity	1.05	Melting point: °C	2334
Atomic weight	101.1	1st  ion potential	7.36	Specific Heat Cap: J/(g K)	0.24
Classification	Trans metal	Natural form	Solid	Thermal Cond: W/(cm K)	1.17
Configuration	[Kr]4d75s1	Crystal structure	Hex	Electrical Cond	0.137
Oxidation states	2,3,4,6,8	Density	12.1	Abundance: mg/kg-crust	0.001
Electronegativity	2.20	Vaporization: kJ/Mole	567.8
Ruthenium was discovered in 1844 by Karl Klaus.			Uses - catalysts, platinum alloys