protactinium

Summary

protactinium is a chemical element^[1]. protactinium draws 445 Wikipedia views per month (chemical_element category, ranking #95 of 144).^[2]

Key Facts

• protactinium is credited with the discovery of Kazimierz Fajans^[3].
• protactinium is credited with the discovery of Otto Hahn^[4].
• protactinium is credited with the discovery of Lise Meitner^[5].
• protactinium's image is recorded as Protactinium-233.jpg^[6].
• protactinium's instance of is recorded as chemical element^[7].
• actinium is named after protactinium^[8].
• protactinium's GND ID is recorded as 4175981-3^[9].
• protactinium's CAS Registry Number is recorded as 7440-13-3^[10].
• protactinium's EC number is recorded as 616-087-9^[11].
• protactinium's canonical SMILES is recorded as [Pa]^[12].
• protactinium's InChI is recorded as InChI=1S/Pa^[13].
• protactinium's InChIKey is recorded as XLROVYAPLOFLNU-UHFFFAOYSA-N^[14].
• protactinium's Library of Congress authority ID is recorded as sh85107634^[15].
• protactinium's element symbol is recorded as Pa^[16].
• protactinium's chemical formula is recorded as Pa^[17].
• protactinium's part of is recorded as period 7^[18].
• protactinium's part of is recorded as actinide^[19].
• protactinium's Commons category is recorded as Protactinium^[20].
• protactinium's pronunciation audio is recorded as LL-Q150 (fra)-Guilhelma-protactinium.wav^[21].
• protactinium's MeSH descriptor ID is recorded as D011478^[22].
• protactinium's Unicode character is recorded as 鏷^[23].
• protactinium's time of discovery or invention is recorded as +1917-00-00T00:00:00Z^[24].
• protactinium's Freebase ID is recorded as /m/025s7xw^[25].
• protactinium's UNII is recorded as 0S6855V29M^[26].
• protactinium's ChemSpider ID is recorded as 22387^[27].

Body

Works and Contributions

Credited discoveries include Kazimierz Fajans^[3], a physicist^[28], 1887–1975^[29], of United States^[30], awarded the Fellow of the American Physical Society^[31], specialised in physical chemistry^[32]; Otto Hahn^[4], a chemist^[33], 1879–1968^[34], of West Germany^[35], awarded the Officer of the Legion of Honour^[36], specialised in radiochemistry^[37]; and Lise Meitner^[5], a nuclear physicist^[38], 1878–1968^[39], of Cisleithania^[40], awarded the Silver Leibniz medal^[41], specialised in physics^[42].

Why It Matters

protactinium draws 445 Wikipedia views per month (chemical_element category, ranking #95 of 144).^[2] protactinium has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.^[43] protactinium is known by 31 alternative names across languages and contexts.^[44]