Name       : Lawrencium
Symbol     : Lr
Atomic #   : 103
Atom weight: 260 (Estimate value)
Melting P. : 
Boiling P. : 
Oxidation  : +3
Pronounced : lor-ENS-i-em
From       : Named in honor of Ernest O. Lawrence, inventor of the cyclotron
Identified : Albert Ghiorso, T. Sikkeland, A.E.Larsh, and R.M. Latimer in
             1961
Appearance : Radioactive, synthetic metal