Osmium

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Osmium
Os
In situ availability:
Necessity:
Atomic number: 76
Atomic mass: 190.23
group: 8
period: 6
normal phase: Solid
series: Transition Metals
density: 22.61 g/cm3
melting point: 3306K,
3033°C,
5491°F
boiling point: 5285K,
5012°C,
9054°F
TcRuRh
Re ← Os → Ir
BhHsMt
Atomic radius (pm): 130
Bohr radius (pm): 185
Covalent radius (pm): 128
Van der Waals radius (pm):
ionic radius (pm): (+4) 63
1st ion potential (eV): 8.7
Electron Configuration
1s2
2s2 2p6
3s2 3p6 3d10
4s2 4p6 4d10 4f14
5s2 5p6 5d6
6s2
Electrons Per Shell
2, 8, 18, 32, 14, 2
Electronegativity: 2.2
Electron Affinity: 1.1
Oxidation states: 2, 3, 4, 6, 8
Magnetism: ?
Crystal structure: Hexagonal

Osmium is a Transition Metal in group 8. It has a Hexagonal crystalline structure. This element has 7 stable isotopes: 184, 186, 187, 188, 189, 190, and 192.


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