Rhenium

Rhenium, 75Re
Rhenium
Pípè /ˈrniəm/ (REE-nee-əm)
Ìhànsójúgrayish white
Ìwúwo átọ̀mù Ar, std(Re)186.207(1)[1]
Rhenium ní orí tábìlì àyè
HydrogenHelium
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RubidiumStrontiumYttriumZirconiumNiobiumMolybdenumTechnetiumRutheniumRhodiumPalladiumSilverCadmiumIndiumTinAntimonyTelluriumIodineXenon
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FranciumRadiumActiniumThoriumProtactiniumUraniumNeptuniumPlutoniumAmericiumCuriumBerkeliumCaliforniumEinsteiniumFermiumMendeleviumNobeliumLawrenciumRutherfordiumDubniumSeaborgiumBohriumHassiumMeitneriumDarmstadtiumRoentgeniumCoperniciumNihoniumFleroviumMoscoviumLivermoriumTennessineOganesson
Tc

Re

Bh
tungstenrheniumosmium
Nọ́mbà átọ̀mù (Z)75
Ẹgbẹ́group 7
Àyèàyè 6
Àdìpọ̀Àdìpọ̀-d
Ẹ̀ka ẹ́límẹ́ntì  Transition metal
Ìtò ẹ̀lẹ́ktrọ́nù[Xe] 4f14 5d5 6s2
Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan2, 8, 18, 32, 13, 2
Àwọn ohun ìní ara
Ìfarahàn at STPsolid
Ìgbà ìyọ́3459 K ​(3186 °C, ​5767 °F)
Ígbà ìhó5869 K ​(5596 °C, ​10105 °F)
Kíki (near r.t.)21.02 g/cm3
when liquid (at m.p.)18.9 g/cm3
Heat of fusion60.43 kJ/mol
Heat of 704 kJ/mol
Molar heat capacity25.48 J/(mol·K)
 pressure
P (Pa)1101001 k10 k100 k
at T (K)330336144009450051275954
Atomic properties
Oxidation states−3, −1, 0, +1, +2, +3, +4, +5, +6, +7 Àdàkọ:Infobox element/symbol-to-oxidation-state/comment
ElectronegativityPauling scale: 1.9
energies
  • (more)
Atomic radiusempirical: 137 pm
Covalent radius151±7 pm
Color lines in a spectral range
Color lines in a spectral range
Spectral lines of rhenium
Other properties
Natural occurrenceprimordial
Crystal structure ​hexagonal
Hexagonal crystal structure for rhenium
Speed of sound thin rod4700 m/s (at 20 °C)
Thermal expansion6.2 µm/(m·K)
Thermal conductivity48.0 W/(m·K)
Electrical resistivity193 n Ω·m (at 20 °C)
Magnetic orderingparamagnetic[2]
Young's modulus463 GPa
Shear modulus178 GPa
Bulk modulus370 GPa
Poisson ratio0.30
Mohs hardness7.0
Vickers hardness2450 MPa
Brinell hardness1320 MPa
CAS Number7440-15-5
Main isotopes of rhenium
Iso­topeAbun­danceHalf-life (t1/2)Decay modePro­duct
185Re37.4%185Re is stable with 110 neutrons
187Re62.6%4.35×1010 yα (not observed)1.653183Ta
β-0.0026187Os
Àdàkọ:Category-inline
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