Symbol	Ho	Atomic radius: pm	174	Fusion: kJ/Mole	17.0
Name	Holmium	Ionic radius: pm	-	Boiling point: °C	2700
Atomic number	67	Electron affinity	-	Melting point: °C	1474
Atomic weight	164.9	1st  ion potential	6.02	Specific Heat Cap: J/(g K)	0.17
Classification	Trans metal	Natural form	Solid	Thermal Cond: W/(cm K)	0.16
Configuration	[Xe]4f116s2	Crystal structure	Hex	Electrical Cond	0.0124
Oxidation states	3	Density	8.80	Abundance: mg/kg-crust	1.3
Electronegativity	1.23	Vaporization: kJ/Mole	251.0
Holmium was discovered in 1878 spectroscopically by J.L. Soret and M. Delafontaine.  It was then discovered independently by Per Teodor Cleve in 1879 when he separated it chemically from erbium and thulium.			Uses - alloys