Lawrencium Facts

Chemical and Physical Properties

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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), Lange's Handbook of Chemistry (1952)

Periodic Table of the Elements

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Your Citation
Helmenstine, Anne Marie, Ph.D. "Lawrencium Facts." ThoughtCo, Mar. 10, 2017, Helmenstine, Anne Marie, Ph.D. (2017, March 10). Lawrencium Facts. Retrieved from Helmenstine, Anne Marie, Ph.D. "Lawrencium Facts." ThoughtCo. (accessed March 22, 2018).