Symbol
Os
Atomic Number
76
Atomic Mass
190.23
Protons
76
Neutrons
114
Electrons
76
Type
Transition Metal
Isotopes
Osmium-184, Osmium-186, Osmium-187, Osmium-188, Osmium-189, Osmium-190, Osmium-192
Discovery Year
1803
Discovered By
William Hyde Wollaston
Group
8
Period
6
Boiling Point
10500°F
Melting Point
5370°F
Electron Configuration
[Xe] 6s² 4f¹⁴ 5d⁶
Density (g/cm³)
22.59
Crystal Structure
Hexagonal
Magnetism
Paramagnetic
Abundance in Earth's Crust
0.0000001%
Phase at Room Temperature
Solid