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Technical data for Bismuth

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Overview
NameBismuth
SymbolBi
Atomic Number83
Atomic Weight208.98038
Density9.78 g/cm3
Melting Point271.3 °C
Boiling Point1564 °C

Thermal properties
PhaseSolid
Melting Point271.3 °C
Boiling Point1564 °C
Absolute Melting Point544.4 K
Absolute Boiling Point1837 K
Critical PressureN/A
Critical TemperatureN/A
Heat of Fusion10.9 kJ/mol
Heat of Vaporization160 kJ/mol
Heat of CombustionN/A
Specific Heat122 J/(kg K)[note]
Adiabatic IndexN/A
Neel PointN/A
Thermal Conductivity8 W/(m K)
Thermal Expansion0.0000134 K-1

Bulk physical properties
Density9.78 g/cm3
Density (Liquid)10.05 g/cm3
Molar Volume0.000021368
Brinell Hardness94.2 MPa
Mohs Hardness2.25 MPa
Vickers HardnessN/A
Bulk Modulus31 GPa
Shear Modulus12 GPa
Young Modulus32 GPa
Poisson Ratio0.33
Refractive IndexN/A
Speed of Sound1790 m/s
Thermal Conductivity8 W/(m K)
Thermal Expansion0.0000134 K-1

Reactivity
Valence5
Electronegativity2.02
ElectronAffinity91.2 kJ/mol
Ionization Energies
703, 1610, 2466, 4370, 5.4×103, 8520 kJ/mol

Health and Safety
Autoignition PointN/A
FlashpointN/A
Heat of CombustionN/A
DOT Hazard Class6.1
DOT Numbers3080
EU NumberN/A
NFPA Fire RatingN/A
NFPA HazardsN/A
NFPA Health RatingN/A
NFPA Reactivity RatingN/A
RTECS NumberRTECSEB2600000
NFPA LabelN/A

Classifications
Alternate NamesNone
Names of AllotropesNone
Blockp
Group15
Period6
Electron Configuration[Xe]4f145d106s26p3
ColorGray
Discovery
1400
Gas phaseN/A
CAS NumberCAS7440-69-9
CID NumberCID5359367
Gmelin NumberN/A
NSC NumberN/A
RTECS NumberRTECSEB2600000

Electrical properties
Electrical TypeConductor
Electrical Conductivity7.7×105 S/m
Resistivity1.3×10-6 m Ω
Superconducting PointN/A

Magnetic properties
Magnetic TypeDiamagnetic
Curie PointN/A
Mass Magnetic Susceptibility-1.7×10-8
Molar Magnetic Susceptibility-3.6×10-9
Volume Magnetic Susceptibility-0.00017

Abundances
% in Universe7×10-8%
% in Sun1×10-6%
% in Meteorites6.9×10-6%
% in Earth's Crust2.5×10-6%
% in Oceans2×10-9%
% in HumansN/A

Atomic dimensions and structure
Atomic Radius143 pm
Covalent Radius146 pm
Van der Waals RadiusN/A
Crystal StructureBase Centered Monoclinic
Lattice Angles
π/2, 1.925622, π/2
Lattice Constants
667.4, 611.7, 330.4 pm
Space Group NameC12/m1
Space Group Number12

Nuclear Properties
Half-Life1.9×1019 y
Lifetime2.76×1019 y
Decay ModeAlphaEmission
Quantum Numbers4S3/2
Neutron Cross Section0.034
Neutron Mass Absorption6×10-6
Known Isotopes
184Bi, 185Bi, 186Bi, 187Bi, 188Bi, 189Bi, 190Bi, 191Bi, 192Bi, 193Bi, 194Bi, 195Bi, 196Bi, 197Bi, 198Bi, 199Bi, 200Bi, 201Bi, 202Bi, 203Bi, 204Bi, 205Bi, 206Bi, 207Bi, 208Bi, 209Bi, 210Bi, 211Bi, 212Bi, 213Bi, 214Bi, 215Bi, 216Bi, 217Bi, 218Bi
Stable Isotopes
Isotopic Abundances
209Bi100%


Notes on the properties of Bismuth:

Specific Heat: Value given for solid phase.

Up to date, curated data provided by
Mathematica's ElementData function from Wolfram Research, Inc.

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