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Ruthenium

Symbol: Ru
Atomic Mass/Weight: 101.07 AMU
Atomic Number: 44
Oxidation State (Bold Most Stable):  +3,+4,+2,+6,+8
Melting Point: 2523 K
Boiling Point: 4538 K
# of Isotopes: 7
Electron Configuration: [Kr] 4d7 5s1
Lewis Dot Diagram:
Ruthenium - Lewis Dot Diagram