Osmium

Osmium, ₇₆Os
Osmium
Pípè	/ˈɒzmiəm/ (OZ-mee-əm)
Ìhànsójú	silvery, blue cast
Ìwúwo átọ̀mù Ar, std(Os)	190.23(3)
Osmium ní orí tábìlì àyè
	rhenium ← osmium → iridium
Nọ́mbà átọ̀mù (Z)	76
Ẹgbẹ́	group 8
Àyè	àyè 6
Àdìpọ̀	Àdìpọ̀-d
Ẹ̀ka ẹ́límẹ́ntì	Transition metal
Ìtò ẹ̀lẹ́ktrọ́nù	[Xe] 4f14 5d6 6s2
Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan	2, 8, 18, 32, 14, 2
Àwọn ohun ìní ara
Ìfarahàn at STP	solid
Ìgbà ìyọ́	3306 K (3033 °C, 5491 °F)
Ígbà ìhó	5285 K (5012 °C, 9054 °F)
Kíki (near r.t.)	22.59 g/cm3
when liquid (at m.p.)	20 g/cm3
Heat of fusion	57.85 kJ/mol
Heat of	738 kJ/mol
Molar heat capacity	24.7 J/(mol·K)
Atomic properties
Oxidation states	−4, −2, −1, 0, +1, +2, +3, +4, +5, +6, +7, +8 Àdàkọ:Infobox element/symbol-to-oxidation-state/comment
Electronegativity	Pauling scale: 2.2
Atomic radius	empirical: 135 pm
Covalent radius	144±4 pm
	Color lines in a spectral rangeSpectral lines of osmium
Other properties
Natural occurrence	primordial
Crystal structure	hexagonal
Speed of sound thin rod	4940 m/s (at 20 °C)
Thermal expansion	5.1 µm/(m·K) (at 25 °C)
Thermal conductivity	87.6 W/(m·K)
Electrical resistivity	81.2 n Ω·m (at 0 °C)
Magnetic ordering	paramagnetic
Shear modulus	222 GPa
Bulk modulus	462 GPa
Poisson ratio	0.25
Mohs hardness	7.0
Brinell hardness	3920 MPa
CAS Number	7440-04-2
Main isotopes of osmium
	Àdàkọ:Category-inline; wo; ọ̀rọ̀; àtúnṣe; \| references

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Itokasi

↑ Meija, Juris; Coplen, Tyler B.; Berglund, Michael; Brand, Willi A.; De Bièvre, Paul; Gröning, Manfred; Holden, Norman E.; Irrgeher, Johanna et al. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure and Applied Chemistry 88 (3): 265–91. doi:10.1515/pac-2015-0305.
↑ Magnetic susceptibility of the elements and inorganic compounds, in Handbook of Chemistry and Physics 81st edition, CRC press.

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