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- 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
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