Lawrencium Facts - Periodic Table of the Chemical Elements

Lawrencium  Basic Facts Atomic Number: 103 Symbol: Lr Atomic Weight: (262) Discovery: A. Ghiorso, T. Sikkeland, A.E. Larsh, R.M. Latimer (1961 United States) Electron Configuration: [Rn] 5f14 6d1 7s2 Atomic Weight: 262.11 Element Classification: Radioactive Rare Earth (Actinide Series) Name Origin: Named in honor of Ernest O. Lawrence, inventor of the cyclotron. Appearance: Radioactive, synthetic metal Atomic Radius (pm): 282 Oxidation States: 3 References: Los Alamos National Laboratory (2001), Crescent Chemical Company (2001), Langes Handbook of Chemistry (1952) Periodic Table of the Elements