బిస్మత్, 00 Bi Pronunciation (BIZ -məth Appearance lustrous silver
Group మూస:Infobox element/symbol-to-group/format Period period 6 Block p-block Electron configuration [Xe ] 4f14 5d10 6s2 6p3 Electrons per shell 2, 8, 18, 32, 18, 5 Phase at STP solid Melting point 544.7 K (271.5 °C, 520.7 °F) Boiling point 1837 K (1564 °C, 2847 °F) Density (near r.t. ) 9.78 g/cm3 when liquid (at m.p. ) 10.05 g/cm3 Heat of fusion 11.30 kJ/mol Heat of vaporization 151 kJ/mol Molar heat capacity 25.52 J/(mol·K) Vapor pressure
P (Pa)
1
10
100
1 k
10 k
100 k
at T (K)
941
1041
1165
1325
1538
1835
Oxidation state s−3, −2, −1, 0,[ 3] +3 acidic oxide) Electronegativity Pauling scale: 2.02 Ionization energies Atomic radius empirical: 156 pm Covalent radius 148±4 pm Van der Waals radius 207 pm Spectral line s of బిస్మత్Natural occurrence primordial Crystal structure rhombohedral [ 4] Speed of sound thin rod 1790 m/s (at 20 °C) Thermal expansion 13.4 µm/(m⋅K) (at 25 °C) Thermal conductivity 7.97 W/(m⋅K) Electrical resistivity 1.29 µ Ω⋅m (at 20 °C) Magnetic ordering diamagnetic 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 Number 7440-69-9 Discovery Claude François Geoffroy (1753) Template:infobox బిస్మత్ isotopes does not exist Category: బిస్మత్ references
References
These references will appear in the article, but this list appears only on this page.
↑ "Standard Atomic Weights: Bismuth" . CIAAW . 2005.↑ Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; et al. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)" . Pure and Applied Chemistry (in ఇంగ్లీష్). doi :10.1515/pac-2019-0603 . ISSN 1365-3075 . ↑ Bi(0) state exists in a N-heterocyclic carbene complex of dibismuthene; see Deka, Rajesh; Orthaber, Andreas (May 6, 2022). "Carbene chemistry of arsenic, antimony, and bismuth: origin, evolution and future prospects". Royal Society of Chemistry . 51 (22): 8540–8556. doi :10.1039/d2dt00755j . PMID 35578901 . S2CID 248675805 .
↑ Cucka, P.; Barrett, C. S. (1962). "The crystal structure of Bi and of solid solutions of Pb, Sn, Sb and Te in Bi". Acta Crystallographica . 15 (9): 865. doi :10.1107/S0365110X62002297 .
