protactinium ne demek?
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The radioactive decay of uranium produces transient amounts of actinium and protactinium , and atoms of neptunium , americium , curium ,
Kaynak: Actinide
Kaynak: Actinide
238 U radiates alpha-particles and decays (by way of thorium -234 and protactinium -234) into uranium-234 . 234 U has a half-life of 245
Kaynak: Uranium-238
Kaynak: Uranium-238
Of these 14 transient elements, 7 (polonium , astatine , radon , francium , radium , actinium , and protactinium ) are relatively common
Kaynak: Chemical element
Kaynak: Chemical element
was able in 1927 to isolate protactinium oxide and was later able to produce metallic protactinium by decomposition of protactinium iodide.
Kaynak: Aristid von Grosse
Kaynak: Aristid von Grosse
PaBr 4 | protactinium(IV) bromide | 13867-42-0 | PaBr 5 | protactinium(V) bromide | 15608-38-5 | PaCl 4 | protactinium(IV) chloride |
Kaynak: List of CAS numbers by chemical compound
Kaynak: List of CAS numbers by chemical compound
actinoid series elements : protactinium D01.268.033.900 | Thorium thorium D01.268.033.950 | Uranium uranium. D01.268.067 | Arsenic
Kaynak: List of MeSH codes (D01)
Kaynak: List of MeSH codes (D01)
Next, with a short half-life, Th-234 nuclei emit a beta particle to become protactinium -234 (Pa-234). Finally, Pa-234 nuclei emit
Kaynak: Uranium-234
Kaynak: Uranium-234
Finally in 1949, the International Union of Pure and Applied Chemistry (IUPAC ) named this new element protactinium and confirmed Hahn
Kaynak: Otto Hahn
Kaynak: Otto Hahn
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