Bismuth

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Bismuth, 83Bi
Bismuth-3.jpg
Bismuth
Pípè /ˈbɪzməθ/ (BIZ-məth)
Ìhànsójúlustrous silver
Ìwúwo átọ̀mù Ar, std(Bi)208.98040(1)[1]
Bismuth ní orí tábìlì àyè
Hydrogen Helium
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Sb

Bi

Mc
leadbismuthpolonium
Nọ́mbà átọ̀mù (Z)83
Ẹgbẹ́group 15 (pnictogens)
Àyèàyè 6
Àdìpọ̀Àdìpọ̀-p
Ẹ̀ka ẹ́límẹ́ntì  Post-transition metal
Ìtò ẹ̀lẹ́ktrọ́nù[Xe] 4f14 5d10 6s2 6p3
Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan2, 8, 18, 32, 18, 5
Àwọn ohun ìní ara
Ìfarahàn at STPsolid
Ìgbà ìyọ́544.7 K ​(271.5 °C, ​520.7 °F)
Ígbà ìhó1837 K ​(1564 °C, ​2847 °F)
Kíki (near r.t.)9.78 g/cm3
when liquid (at m.p.)10.05 g/cm3
Heat of fusion11.30 kJ/mol
Heat of 151 kJ/mol
Molar heat capacity25.52 J/(mol·K)
 pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 941 1041 1165 1325 1538 1835
Atomic properties
Oxidation states−3, −2, −1, +1, +2, +3, +4, +5 Àdàkọ:Infobox element/symbol-to-oxidation-state/comment
ElectronegativityPauling scale: 2.02
energies
Atomic radiusempirical: 156 pm
Covalent radius148±4 pm
Van der Waals radius207 pm
Color lines in a spectral range
Spectral lines of bismuth
Other properties
Natural occurrenceprimordial
Crystal structurerhombohedral
Rhombohedral crystal structure for bismuth
Speed of sound thin rod1790 m/s (at 20 °C)
Thermal expansion13.4 µm/(m·K) (at 25 °C)
Thermal conductivity7.97 W/(m·K)
Electrical resistivity1.29 µ Ω·m (at 20 °C)
Magnetic orderingdiamagnetic
Young's modulus32 GPa
Shear modulus12 GPa
Bulk modulus31 GPa
Poisson ratio0.33
Mohs hardness2.25
Brinell hardness94.2 MPa
CAS Number7440-69-9
Main isotopes of bismuth
Iso­tope Abun­dance Half-life (t1/2) Decay mode Pro­duct
207Bi syn 31.55 y ε, β+ 2.399 207Pb
208Bi syn 368,000 y ε, β+ 2.880 208Pb
209Bi 100% (19 ± 2) ×1018y α 3.14 205Tl
210mBi syn 3.04 ×106y IT 0.271 210Bi
Àdàkọ:Category-inline
| references

Bismuth (pípè /ˈbɪzməθ/, BIZ-məth) je ipilese elegbogi to ni ami-idamo Bi ati nomba atomu 83.


Itumosi[àtúnṣe | àtúnṣe àmìọ̀rọ̀]

  1. 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.