Technical data for Tin

Overview
NameTin
SymbolSn
Atomic Number50
Atomic Weight118.71
Density7.31 g/cm3
Melting Point231.93 °C
Boiling Point2602 °C

Thermal properties
PhaseSolid
Melting Point231.93 °C
Boiling Point2602 °C
Absolute Melting Point505.08 K
Absolute Boiling Point2875 K
Heat of Fusion7 kJ/mol
Heat of Vaporization290 kJ/mol
Heat of CombustionN/A
Specific Heat217 J/(kg K)[note]
Thermal Conductivity67 W/(m K)
Thermal Expansion0.000022 K-1

Bulk physical properties
Density7.31 g/cm3
Density (Liquid)6.99 g/cm3
Molar Volume0.000016239
Brinell Hardness51 MPa
Mohs Hardness1.5 MPa
Bulk Modulus58 GPa
Shear Modulus18 GPa
Young Modulus50 GPa
Poisson Ratio0.36
Speed of Sound2.5×103 m/s
Thermal Conductivity67 W/(m K)
Thermal Expansion0.000022 K-1

Reactivity
Valence4
Electronegativity1.96
ElectronAffinity107.3 kJ/mol
Ionization Energies
708.6, 1411.8, 2943, 3930.3, 7456 kJ/mol

Health and Safety
Autoignition Point630 °C
FlashpointN/A

Classifications
Alternate NamesStannum
Nams of Allotropes
WhiteTin, GrayTin
Blockp
Group14
Period5
Electron Configuration[Kr]4d105s25p2
ColorSilver
Discovery
3000 BC
Gas phaseN/A
CAS NumberCAS7440-31-5

Electrical properties
Electrical TypeConductor
Electrical Conductivity9.1×106 S/m
Resistivity1.1×10-7 m Ω
Superconducting Point3.72

Magnetic properties
Magnetic TypeParamagnetic
Mass Magnetic Susceptibility-3.1×10-9
Molar Magnetic Susceptibility-3.68×10-10
Volume Magnetic Susceptibility-0.0000227

Abundances
% in Universe4×10-7%
% in Sun9×10-7%
% in Meteorites0.00012%
% in Earth's Crust0.00022%
% in Oceans1×10-9%
% in Humans0.00002%

Atomic dimensions and structure
Atomic Radius145 pm
Covalent Radius141 pm
Van der Waals Radius217 pm
Crystal StructureCentered Tetragonal
Lattice Angles
π/2, π/2, π/2
Lattice Constants
583.18, 583.18, 318.19 pm
Space Group NameI41/amd
Space Group Number141

Nuclear Properties
Half-LifeStable
LifetimeStable
Isotopic Abundances
112Sn0.97%
114Sn0.66%
115Sn0.34%
116Sn14.54%
117Sn7.68%
118Sn24.22%
119Sn8.59%
120Sn32.58%
122Sn4.63%
124Sn5.79%

Notes on the properties of Tin:
Specific Heat: Value given for solid gray form.