Element Osmium (Os)

Atomic number 76 · transition metal · Atomic mass 190.23 u

Atomic Mass
190.2300 u
Element Properties
Atomic Number 76
Atomic Mass 190.2300 u
Category transition metal / 过渡金属
Group 8
Period 6
Block D
Electron Configuration [Xe] 4f¹⁴ 5d⁶ 6s²
Electronegativity (Pauling) 2.2
Phase at STP Solid
Density 22.587 g/cm³
Year Discovered 1803

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