DEEn Dictionary De - En
DeEs De - Es
DePt De - Pt
 Vocabulary trainer

Spec. subjects Grammar Abbreviations Random search Preferences
Search in Sprachauswahl
Francium
Search for:
Mini search box
 
English Dictionary: francium by the DICT Development Group
2 results for francium
From WordNet (r) 3.0 (2006) [wn]:
francium
n
  1. a radioactive element of the alkali-metal group discovered as a disintegration product of actinium
    Synonym(s): francium, Fr, atomic number 87
From The Elements (22Oct97) [elements]:
   francium
   Symbol: Fr
   Atomic number: 87
   Atomic weight: (223)
   Radioactive element, belongs to group 1 of the periodic table. Found in
   uranium and thorium ores. The 22 known isotopes are all radioactive, with
   the most stable being Fr-223. Its existence was confirmed in 1939 by
   Marguerite Perey.
  
  
No guarantee of accuracy or completeness!
©TU Chemnitz, 2006-2020
Your feedback:
Ad partners


Sprachreisen.org