lawrencium

[ law-ren-see-uhm ]

noun

, Chemistry.

1. a synthetic, radioactive, metallic element. : Lr; : 103.

lawrencium

/ lɔː-; lɒˈrɛnsɪəm /

noun

1. a transuranic element artificially produced from californium. Symbol: Lr; atomic no: 103; half-life of most stable isotope, ²⁵⁶Lr: 35 seconds; valency: 3

lawrencium

/ lô-rĕn′sē-əm /

1. A synthetic, radioactive metallic element of the actinide series that is produced by bombarding californium with boron ions. Its most stable isotope is Lr 262 with a half-life of 3.6 hours. Atomic number 103.
2. See Periodic Table

Word History and Origins

Origin of lawrencium¹

1960–65; Lawrence Radiation Laboratory, Berkeley, California + -ium

Word History and Origins

Origin of lawrencium¹

C20: named after Ernest Orlando Lawrence (1901–58), US physicist