Lawrencium
Lawrencio (Lr, Z=103)
- Date
- 1961 · confidence medium
- Place
- Berkeley, California, United States
- Credited to
- Albert Ghiorso and the Berkeley team (with credit shared with Dubna)
- People
- 👤 Albert Ghiorso1915–2010
- Field
- Matter & energy
⚠️ Disputed: the sources disagree.
What was discovered
Berkeley bombarded californium with boron in the HILAC; Dubna obtained cleaner data in 1965-67, and the IUPAC shared the credit in 1992.
Named after Ernest Lawrence, inventor of the cyclotron.
What it led to
- Closing of the actinide series
- Debate over the position of Lr in the periodic table
- Shared credit as a precedent
Built on
- Californium1950
- HILAC
Made possible
- HILAC heavy-ion linear accelerator