Bismuth

Lát'ọwọ́ Wikipedia, ìwé ìmọ̀ ọ̀fẹ́
Lọ sí: atọ́ka, àwárí
Bismuth
83Bi
Sb

Bi

Uup
leadbismuthpolonium
Ìhànsójú
lustrous silver
Àwọn ìdámọ́ wíwọ́pọ̀
Orúkọ, àmì-ìdámọ́, nọ́mbà bismuth, Bi, 83
Ẹ̀ka ẹ́límẹ̀nti post-transition metal
Ẹgbẹ́, àsìkò, àdìpò 156, p
Ìwúwo átọ́mù 208.98040(1)
Ìtòléra ẹ̀lẹ́ktrónì [Xe] 4f14 5d10 6s2 6p3
2, 8, 18, 32, 18, 5
Physical properties
Phase solid
Density (near r.t.) 9.78 g·cm−3
Liquid density at m.p. 10.05 g·cm−3
Melting point 544.7 K, 271.5 °C, 520.7 °F
Boiling point 1837 K, 1564 °C, 2847 °F
Heat of fusion 11.30 kJ·mol−1
Heat of vaporization 151 kJ·mol−1
Molar heat capacity 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
Bismuth has a rhombohedral crystal structure
Magnetic ordering diamagnetic
Electrical resistivity (20 °C) 1.29 µΩ·m
Thermal conductivity 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−1
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
Àwọn ísótòpù dídúró jùlọ
Main article: Àwọn ísótòpù 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
· r

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


Itumosi[àtúnṣe | àtúnṣe àmìọ̀rọ̀]