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Erbium

Symbol: Er
Atomic Mass/Weight: 167.26 AMU
Atomic Number: 68
Oxidation State: +3
Melting Point: 1795 K
Boiling Point: 3136 K
# of Isotopes: 6
Electron Configuration: [Xe] 4f12 6s2
Lewis Dot Diagram:
Erbium - Lewis Dot Diagram