Francium
Dit artikel is gesjreve (of begós) in 't Mofers.
Laes hie wie v'r mit de versjillende saorte Limburgs ómgaon.
Francium is e sjemisch element mit es symboeal Fr en 't atoeamnómmer 87. 't Is e sterk radioaktief alkalimetaal mit 'n metalliek-duustergries kluuer.
Isotoeape
| Stabielste isotoeape | |||||
|---|---|---|---|---|---|
| Iso | RA (%) | Halveringstied | VV | VE (MeV) | VP |
| 212Fr | syn | 20 m | α | 5,117 | 208At |
| 223Fr | 100 | 22 m | β- | 1,149 | 219At |
Drieëndertig isotoeape van francium zeen bekèndj. 't Langslaevendj en ouch ènsigs netuurlik veurkómmendj isotoeap is 223Fr mit 'nen halveringstied van 22 menuut.
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