Comparison of Lanthanum and Uranium

Attribute	Uranium ×	Lanthanum ×
Atomic mass (u)	238.0289	138.9055
Standard state	Solid	Solid
Oxidation states	+3 +4 +5 +6	+3
Electron configuration	[Rn]7s²5f³6d¹	[Xe]6s²5d¹
Atomic radius (van der waals) (pm)	240	240
Electronegativity (pauling scale)	1.38	1.1
Electron affinity (eV)	-	0.5
Ionization energy (eV)	6.194	5.577
Boiling point (K)	4404	3737
Melting point (K)	1408	1191
Density (g/cm³)	18.95	6.15
Atomic number	92	57
Group name	Actinide	Lanthanide
Symbol	U	La
Discovered (year)	1789	1839