lawrencium
chemical element with symbol Lr and atomic number 103
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Summary
lawrencium is a chemical element[1]. lawrencium draws 2,620 Wikipedia views per month (chemical element category, ranking #101 of 144).[2]
Key Facts
- Discoverer or inventor: Albert Ghiorso[3]
- Instance of: synthetic element[4]
- Named after: Ernest Lawrence[5]
- Location of discovery: University of California, Berkeley[6]
- Canonical SMILES: [Lr][7]
- Element symbol: Lr[8]
- Chemical formula: Lr[9]
- Subclass of: actinide[10], d-block[11]
- Part of: period 7[12], actinide[13], group 3[14]
- Commons category: Lawrencium[15]
- Unicode character: 鐒[16]
- Crystal system: hexagonal crystal system[17]
- Time of discovery or invention: February 14, 1961[18]
- IPA transcription: lɒˈrɛnsiəm[19], ləˈrɛnsiəm[20]
- Topic's main category: Category:Lawrencium[21]
- Commons gallery: Lawrencium[22]
- Atomic number: 103[23]
- Electronegativity: 1.3[24]
- Oxidation state: 3[25]
- Described by source: Armenian Soviet Encyclopedia[26]
- Topic has template: Template:Infobox lawrencium[27]
- Mass: 266.11983[28]
- Melting point: 1900.0[29]
- Ionization energy: 4.96[30], 14.54[31], 21.8[32]
- On focus list of Wikimedia project: Wikipedia:Vital articles/Level/4[33]
Why It Matters
lawrencium has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[34] lawrencium is known by 55 alternative names across languages and contexts.[35]