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Astatine

Symbol: At
Atomic Mass/Weight: 210 AMU
Atomic Number: 85
Oxidation State (Bold Most Stable):  +/- 1,+3,+5,+7
Melting Point: 575 K
Boiling Point: 610 K
# of Isotopes: 0
Electron Configuration: [Xe] 4f14 5d10 6s2 6p5
Lewis Dot Diagram:
Astatine - Lewis Dot Diagram