'lawrencium' definitions:
Definition of 'lawrencium'
From: WordNet
noun
A radioactive transuranic element synthesized from californium [syn: lawrencium, Lr, atomic number 103]
Definition of 'lawrencium'
From: GCIDE
- lawrencium \lawrencium\ n. [from Ernest O. Lawrence, inventer of the cyclotron.] A transuranic element of atomic number 103. It was discovered in 1961 by bombardment of californium in a cyclotron with boron nuclei. Other isotopes were prepared in 1965 at Dubna. The atomic weight of the most stable isotope is 256, having a half-life of 35 seconds. Symbol Lr. --HCP61
- Syn: Lr. [WordNet 1.5]
Definition of 'lawrencium'
From: GCIDE
- Lr \Lr\ n. The chemical symbol for lawrencium, a transuranic element of atomic number 103.
- Syn: lawrencium. [WordNet 1.5]
Definition of 'lawrencium'
From: Elements
- Symbol: Lr
- Atomic number: 103
- Atomic weight: (262)
- Appearance unknown, however it is most likely silvery-white or grey and metallic. Lawrencium is a synthetic rare-earth metal. There are eight known radioisotopes, the most stable being Lr-262 with a half-life of 3.6 hours. Due to the short half-life of lawrencium, and its radioactivity, there are no known uses for it. Identified by Albert Ghiorso in 1961 at Berkeley. It was produced by bombarding californium with boron ions. The name is temporary IUPAC nomenclature, the origin of the name comes from Ernest O. Lawrence, the inventor of the cyclotron. If sufficient amounts of lawrencium were produced, it would pose a radiation hazard.