Symbol	Zr	Atomic radius: pm	159	Fusion: kJ/Mole	21.0
Name	Zirconium	Ionic radius: pm	(+4)84	Boiling point: °C	4409
Atomic number	40	Electron affinity	0.43	Melting point: °C	1855
Atomic weight	91.22	1st  ion potential	6.63	Specific Heat Cap: J/(g K)	0.28
Classification	Trans metal	Natural form	Solid	Thermal Cond: W/(cm K)	0.23
Configuration	[Kr]4d25s2	Crystal structure	Hex	Electrical Cond	0.0236
Oxidation states	4	Density	6.52	Abundance: mg/kg-crust	165
Electronegativity	1.33	Vaporization: kJ/Mole	581.6
Zirconium was discovered in 1789 by Martin Klaproth.			Uses - deoderants, fuel rod clad, laboratory crucibles