OsZ =  76

From the Greek "osme", meaning "a smell"
(AM) Atomic Mass 190.2  amu    Oxidation States +3, +4
   (BP) Boiling Point 5027  °C    (MP) Melting Point 3045  °C
   (ρ) Density 22.5  g/cm3    Crystal Structure Hexagonal
   ( χ ) Electronegativity 2.2    (AR) Atomic Radius 1.28  Å
   Physical State Solid (C) Heat Capacity 0.13  J/g °C
Electronic-Config [Xe]  4f14  5d6  6s2     (I1) First Ionization E 839.42  kJ/mol
   (ΔHvap) Heat of Vaporization 738  kJ/mol     (ΔHfus) Heat of Fusion 57.85  kJ/mol
   Year of Discovery 1803    Location of Discovery United Kingdom
(E°) Standard Potential None
Stable isotopes  184Os,  187Os,  188Os,  189Os,  190Os,  192Os
Discovered/Synthesized by Smithson Tennant
Natural Source Isolated from the native elements or alloys of the various elements or arsenides
Common Uses Electric contacts, pen tips, needles, fingerprint powder
Other Info Densest of the elements
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