Symbol	Nb	Atomic radius: pm	143	Fusion: kJ/Mole	30.0
Name	Niobium	Ionic radius: pm	(+5)64	Boiling point: °C	4744
Atomic number	41	Electron affinity	0.90	Melting point: °C	2477
Atomic weight	92.91	1st  ion potential	6.76	Specific Heat Cap: J/(g K)	0.27
Classification	Trans metal	Natural form	Solid	Thermal Cond: W/(cm K)	0.54
Configuration	[Kr]4d45s1	Crystal structure	BCC	Electrical Cond	0.0693
Oxidation states	5,3	Density	8.57	Abundance: mg/kg-crust	20
Electronegativity	1.60	Vaporization: kJ/Mole	696.6
Charles Hatchet first discovered Niobium in 1801, and he named it columbium.  It was then rediscovered in 1844 by Heinrich Rose, and he gave it the name of niobium.			Uses - stainless steel, magnets