Symbol	Fr	Atomic radius: pm	-	Fusion: kJ/Mole	-
Name	Francium	Ionic radius: pm	-	Boiling point: °C	-
Atomic number	87	Electron affinity	0.46	Melting point: °C	27
Atomic weight	223.0	1st  ion potential	-	Specific Heat Cap: J/(g K)	-
Classification	Alkali metal	Natural form	Solid	Thermal Cond: W/(cm K)	-
Configuration	[Rn]7s1	Crystal structure	-	Electrical Cond	0.03
Oxidation states	1	Density	-	Abundance: mg/kg-crust	<0.001
Electronegativity	0.7	Vaporization: kJ/Mole	-
Francium was discovered by Marguerite Perey in 1939.			Uses -  no uses known