a radioactive, metallic chemical element, the last member of the actinide series: originally produced by bombarding californium with boron nuclei: symbol, Lr; at. no. 103
Origin of lawrenciumModL, after E. O. Lawrence (who invented the cyclotron) + -ium
A synthetic, radioactive metallic element of the actinide series that is produced by bombarding californium with boron ions. The most stable confirmed isotope is Lr-262 with a half-life of approximately 4 hours; atomic number 103. See Periodic Table.
Origin of lawrenciumAfter Ernest Orlando Lawrence.
- A transuranic chemical element (symbol Lr, formerly Lw) with atomic number 103.
Named for Ernest Lawrence.