1 ene 1913 año - 1913 - Renaming of brevium to protactinium Hahn and Lise Meitner discover residues of "brevium" (an element previously named by Kasimir Fajans and Oswald Göhring) in residues of pitchblende ore and suggest a new name for the element: "protoactinium" (now protactinium)

12 nov 2019

1 ene 1913 año

Ahora mismo

~ 111 years ago

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