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103
  Lr  
262.000000
Lawrencium
      


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Name: Lawrencium
Symbol: Lr
Atomic Number: 103
AtomicWeight: 262.000000
Family: Actinides
CAS RN: 22537-19-5
Description: A synthetic metal, not present in nature
State (25 °C): Unknown (Synthetic)
Melting Point: 1900 °K
Boiling Point: ľ °K
Density: ľ g/cm3
Oxidation states: +3
Electron Configuration: [Rn] 5f147s27p1
Radius: no data pm (Covalent)
Electronegativity: 1.3 (Pauling Scale)

1st Ionization Energy: 470 KJ/mole
2nd Ionization Energy: 1428 KJ/mole
3rd Ionization Energy: 2228 KJ/mole

      



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