At
Astatine
85
Atomic Number: 85
Atomic mass: [210]
Ionization energy: 920
Electronaffinity: -270
Covalent radius:
Calculated radius: 127
Empirical radius:
Vanderwaals radius:
Electronegativity: 2.2
Density:
Oxidation states: -1, 1, 3, 5
Melting point: 575
Boiling point:
Electron configuration: [Xe] 4f14 5d10 6s2 6p5
Element group: 17
Element period: 6

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