From Wikipedia, the free encyclopedia
Протактиний (латинлӓ Protactinium ) — хими элемент, Д. И. Менделеевын таблицыштыжы, 91 атом номерӓн . Pa символ доно анжыкталтеш.
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.