praseodymium
chemical element with symbol Pr and atomic number 59
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Summary
praseodymium is a chemical element[1]. praseodymium draws 3,219 Wikipedia views per month (chemical element category, ranking #100 of 144).[2]
Key Facts
- Discoverer or inventor: Carl Gustaf Mosander[3]
- Named after: green[4], twin[5]
- Canonical SMILES: [Pr][6]
- Element symbol: Pr[7]
- Chemical formula: Pr[8]
- Subclass of: lanthanide[9], f-block[10]
- Part of: lanthanide[11], period 6[12]
- Commons category: Praseodymium[13]
- Unicode character: 鐠[14]
- Crystal system: hexagonal crystal system[15]
- Time of discovery or invention: January 1, 1841[16]
- IPA transcription: ˌpreɪziːəˈdɪmiəm[17]
- Topic's main category: Category:Praseodymium[18]
- Commons gallery: Praseodymium[19]
- Atomic number: 59[20]
- Electronegativity: 1.13[21]
- Oxidation state: 0[22], 1[23], 2[24], 3[25], 4[26], 5[27]
- Described by source: Small Brockhaus and Efron Encyclopedic Dictionary[28], Brockhaus and Efron Encyclopedic Dictionary[29], Armenian Soviet Encyclopedia[30], Granat Encyclopedic Dictionary[31]
- Has characteristic: paramagnetism[32]
- Density: 6.773 gram per cubic centimetre[33]
- Electrical conductivity: 1430000.0 siemens per metre[34]
- Mass: 140.90766 dalton[35]
- Thermal conductivity: 13.0 watt per metre kelvin[36]
- Speed of sound: 2280 metre per second[37]
- Melting point: 1208 K[38]
Why It Matters
praseodymium has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[39] praseodymium is known by 60 alternative names across languages and contexts.[40]