Comparison of Tungsten and Osmium

Attribute	Osmium ×	Tungsten ×
Atomic mass (u)	190.2	183.84
Standard state	Solid	Solid
Oxidation states	+3 +4	+6
Electron configuration	[Xe]6s²4f¹⁴5d⁶	[Xe]6s²4f¹⁴5d⁴
Atomic radius (van der waals) (pm)	216	210
Electronegativity (pauling scale)	2.2	2.36
Electron affinity (eV)	1.1	0.815
Ionization energy (eV)	8.7	7.98
Boiling point (K)	5285	5828
Melting point (K)	3306	3695
Density (g/cm³)	22.57	19.3
Atomic number	76	74
Group name	Transition metal	Transition metal
Discovered (year)	1803	1783
Symbol	Os	W