Comparison of Magnesium and Europium

Attribute	Europium ×	Magnesium ×
Standard state	Solid	Solid
Electron configuration	[Xe]6s²4f⁷	[Ne]3s²
Atomic mass (u)	151.964	24.305
Electronegativity (pauling scale)	-	1.31
Oxidation states	+2 +3	+2
Ionization energy (eV)	5.67	7.646
Atomic radius (van der waals) (pm)	233	173
Boiling point (K)	1802	1363
Melting point (K)	1095	923
Density (g/cm³)	5.24	1.74
Atomic number	63	12
Group name	Lanthanide	Alkaline earth metal
Symbol	Eu	Mg
Discovered (year)	1901	1808