Dit artikel is gesjreve (of begós) in 't Mofers. Laes hie wie v'r mit de versjillende saorte Limburgs ómgaon.


Protactinium is e sjemisch element mit es symboeal Pa en 't atoeamnómmer 91. 't Is e metalliek zilverkluuerig aktinied.

Isotoeape[bewirk | brón bewèrke]

Stabielste isotoeape
Iso RA (%) Halveringstied VV VE (MeV) VP
230Pa syn 17,4 d α 1,310 226Ac
231Pa syn 3,2760 · 104 j α 5,149 227Ac
233Pa syn 26,967 d β- 1,245 233U

Van protactinium zeen 29 radio-isotoeape bekèndj. Mit 'n halveringstied van 32760 jaor is 231Pa 't stabielste. Anger isotoeape mit raejelik lang halveringstieje zeen 233Pa (bao 27 daag) en 230Pa (17,4 daag). De euverige isotoeape zeen väöl instabieler.

ntiындclatri, «ауыәм 499көм Бнең poрупухи.64

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