Overview |
Name | Tin |
Symbol | Sn |
Atomic Number | 50 |
Atomic Weight | 118.71 |
Density | 7.31 g/cm3 |
Melting Point | 231.93 °C |
Boiling Point | 2602 °C |
Thermal properties |
Phase | Solid |
Melting Point | 231.93 °C |
Boiling Point | 2602 °C |
Absolute Melting Point | 505.08 K |
Absolute Boiling Point | 2875 K |
Heat of Fusion | 7 kJ/mol |
Heat of Vaporization | 290 kJ/mol |
Heat of Combustion | N/A |
Specific Heat | 217 J/(kg K)[note] |
Thermal Conductivity | 67 W/(m K) |
Thermal Expansion | 0.000022 K-1 |
Bulk physical properties |
Density | 7.31 g/cm3 |
Density (Liquid) | 6.99 g/cm3 |
Molar Volume | 0.000016239 |
Brinell Hardness | 51 MPa |
Mohs Hardness | 1.5 MPa |
Bulk Modulus | 58 GPa |
Shear Modulus | 18 GPa |
Young Modulus | 50 GPa |
Poisson Ratio | 0.36 |
Speed of Sound | 2.5×103 m/s |
Thermal Conductivity | 67 W/(m K) |
Thermal Expansion | 0.000022 K-1 |
Reactivity |
Valence | 4 |
Electronegativity | 1.96 |
ElectronAffinity | 107.3 kJ/mol |
Ionization Energies | 708.6, 1411.8, 2943, 3930.3, 7456 kJ/mol |
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Health and Safety |
Autoignition Point | 630 °C |
Flashpoint | N/A |
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Classifications |
Alternate Names | Stannum |
Nams of Allotropes | |
Block | p |
Group | 14 |
Period | 5 |
Electron Configuration | [Kr]4d105s25p2 |
Color | Silver |
Discovery | |
Gas phase | N/A |
CAS Number | CAS7440-31-5 |
Electrical properties |
Electrical Type | Conductor |
Electrical Conductivity | 9.1×106 S/m |
Resistivity | 1.1×10-7 m Ω |
Superconducting Point | 3.72 |
Magnetic properties |
Magnetic Type | Paramagnetic |
Mass Magnetic Susceptibility | -3.1×10-9 |
Molar Magnetic Susceptibility | -3.68×10-10 |
Volume Magnetic Susceptibility | -0.0000227 |
Abundances |
% in Universe | 4×10-7% |
% in Sun | 9×10-7% |
% in Meteorites | 0.00012% |
% in Earth's Crust | 0.00022% |
% in Oceans | 1×10-9% |
% in Humans | 0.00002% |
Atomic dimensions and structure |
Atomic Radius | 145 pm |
Covalent Radius | 141 pm |
Van der Waals Radius | 217 pm |
Crystal Structure | Centered Tetragonal |
Lattice Angles | |
Lattice Constants | 583.18, 583.18, 318.19 pm |
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Space Group Name | I41/amd |
Space Group Number | 141 |
Nuclear Properties |
Half-Life | Stable |
Lifetime | Stable |
Isotopic Abundances | 112Sn | 0.97% | 114Sn | 0.66% | 115Sn | 0.34% | 116Sn | 14.54% | 117Sn | 7.68% | 118Sn | 24.22% | 119Sn | 8.59% | 120Sn | 32.58% | 122Sn | 4.63% | 124Sn | 5.79% |
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