Bismuth

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Lọ sí: atọ́ka, àwárí
leadbismuthpolonium
Sb

Bi

Uup
Ìfarahàn
lustrous silver
Àwọn ìní àníkárí
Orúkọ, àmì-ìdámọ̀, nọ́mbà bismuth, Bi, 83
Ẹ̀ka apilẹ̀sẹ̀ post-transition metal
Àdìpọ̀, ìgbà, block 156, p
Ìwúwo átọ́mù 208.98040(1)g·mol−1
Ìtòjọ ẹ̀lẹ́ktrónì [Xe] 4f14 5d10 6s2 6p3
Àwọn ẹ̀lẹ́ktrónì lórí ọ̀nà kan 2, 8, 18, 32, 18, 5 (Image)
Àwọn ìní aláfójúrí
Phase solid
Kíki (tó súnmọ́ r.t.) 9.78 g·cm−3
Liquid density at m.p. 10.05 g·cm−3
ojúàmì ìyọ́ 544.7 K, 271.5 °C, 520.7 °F
ajúàmì ìhó 1837 K, 1564 °C, 2847 °F
Heat of fusion 11.30 kJ·mol−1
Heat of vaporization 151 kJ·mol−1
Specific heat capacity (25 °C) 25.52 J·mol−1·K−1
Vapor 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, 5
(mildly acidic oxide)
Electronegativity 2.02 (Pauling scale)
Ionization energies
(more)
1st: 703 kJ·mol−1
2nd: 1610 kJ·mol−1
3rd: 2466 kJ·mol−1
Atomic radius 156 pm
Covalent radius 148±4 pm
Van der Waals radius 207 pm
Miscellanea
Crystal structure rhombohedral
Magnetic ordering diamagnetic
Electrical resistivity (20 °C) 1.29 µΩ·m
Thermal conductivity (300 K) 7.97 W·m−1·K−1
Thermal expansion (25 °C) 13.4 µm·m−1·K−1
Speed of sound (thin rod) (20 °C) 1790 m/s
Young's modulus 32 GPa
Shear modulus 12 GPa
Bulk modulus 31 GPa
Poisson ratio 0.33
Mohs hardness 2.25
Brinell hardness 94.2 MPa
CAS registry number 7440-69-9
Most stable isotopes
Main article: Isotopes of bismuth
iso NA half-life DM DE (MeV) DP
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

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


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