Name: Astatine
Symbol: At
Atomic Number: 85
AtomicWeight: 210.000000
Family: halogens
CAS RN: 7440-68-8
Description: A metallic solid member of the halogen family
State (25 °C): Solid
Melting Point: 575 °K
Boiling Point: 610 °K
Density: 7. g/cm³
Oxidation states:
Electron Configuration: [Xe] 4f¹⁴5d¹⁰6s²6p⁵
Radius: no data pm (Covalent)
Electronegativity: 2.2 (Pauling Scale)

1st Ionization Energy: 899 KJ/mole
2nd Ionization Energy: – KJ/mole
3rd Ionization Energy: – KJ/mole