meitnerium
chemical element with symbol Mt and atomic number 109
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Summary
meitnerium is a chemical element[1]. meitnerium draws 2,425 Wikipedia views per month (chemical element category, ranking #106 of 144).[2]
Key Facts
- Discoverer or inventor: GSI Helmholtz Centre for Heavy Ion Research[3]
- Instance of: synthetic element[4]
- Named after: Lise Meitner[5]
- Location of discovery: GSI Helmholtz Centre for Heavy Ion Research[6]
- Element symbol: Mt[7], Une[8]
- Subclass of: d-block[9]
- Part of: period 7[10], group 9[11], transition metal[12]
- Commons category: Meitnerium[13]
- Unicode character: 䥑[14]
- Crystal system: face-centered cubic[15]
- Time of discovery or invention: August 29, 1982[16]
- IPA transcription: maɪtˈnɪəriəm[17], ˈmaɪtnəriəm[18]
- Topic's main category: Category:Meitnerium[19]
- Commons gallery: Meitnerium[20]
- Atomic number: 109[21]
- Oxidation state: 1[22], 3[23], 4[24], 6[25], 8[26], 9[27]
- Mass: 278.15631[28]
- On focus list of Wikimedia project: Wikipedia:Vital articles/Level/4[29]
- Electron configuration: [Rn] 7s² 5f¹⁴ 6d⁷[30]
- P14541: 3UFiKe[31]
Why It Matters
meitnerium has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[32] meitnerium is known by 50 alternative names across languages and contexts.[33]