Overview |
Name | Astatine |
Symbol | At |
Atomic Number | 85 |
Atomic Weight | 210[note] |
Density | N/A |
Melting Point | 302 °C |
Boiling Point | N/A |
Thermal properties |
Phase | Solid |
Melting Point | 302 °C |
Boiling Point | N/A |
Absolute Melting Point | 575 K |
Absolute Boiling Point | N/A |
Heat of Fusion | 6 kJ/mol |
Heat of Vaporization | 40 kJ/mol |
Heat of Combustion | N/A |
Specific Heat | N/A |
Thermal Conductivity | 2 W/(m K) |
Thermal Expansion | N/A |
Bulk physical properties |
Density | N/A |
Density (Liquid) | N/A |
Thermal Conductivity | 2 W/(m K) |
Thermal Expansion | N/A |
Reactivity |
Valence | 7 |
Electronegativity | 2.2 |
ElectronAffinity | 270.1 kJ/mol |
Ionization Energies | |
Health and Safety |
Autoignition Point | N/A |
Flashpoint | N/A |
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Classifications |
Alternate Names | None |
Nams of Allotropes | None |
Block | p |
Group | 17 |
Period | 6 |
Electron Configuration | [Xe]4f145d106s26p5 |
Color | Silver |
Discovery | |
Gas phase | N/A |
CAS Number | CAS7440-68-8 |
Electrical properties |
Electrical Type | N/A |
Electrical Conductivity | N/A |
Resistivity | N/A |
Superconducting Point | N/A |
Magnetic properties |
Magnetic Type | N/A |
Curie Point | N/A |
Mass Magnetic Susceptibility | N/A |
Molar Magnetic Susceptibility | N/A |
Volume Magnetic Susceptibility | N/A |
Abundances |
% in Universe | N/A |
% in Sun | N/A |
% in Meteorites | None |
% in Earth's Crust | None |
% in Oceans | None |
% in Humans | None |
Atomic dimensions and structure |
Atomic Radius | 127 pm |
Covalent Radius | N/A |
Van der Waals Radius | N/A |
Crystal Structure | N/A |
Lattice Angles | N/A |
Lattice Constants | N/A |
Space Group Name | N/A |
Space Group Number | N/A |
Nuclear Properties |
Half-Life | 8.06 h |
Lifetime | 11.7 h |
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