francium

Definitions

  • WordNet 3.6
    • n francium a radioactive element of the alkali-metal group discovered as a disintegration product of actinium
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Usage


In news:

We made francium in a nuclear fusion reaction.
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In science:

In particular some radioactive nuclei of Francium and Radium isotopes are of interest.
Low Energy Antiproton Experiments -- A Review
Discovery of astatine, radon, francium, and radium Isotopes.
Discovery of the astatine, radon, francium, and radium isotopes
Fig. 4: Francium isotopes as a function of time when they were discovered.
Discovery of the astatine, radon, francium, and radium isotopes
Si(Au) surface-barrier detector which measured subsequent α decay. “Francium-203.
Discovery of the astatine, radon, francium, and radium isotopes
Francium was produced by spallation of 238U with 600 MeV protons from the CERN synchrocyclotron.
Discovery of the astatine, radon, francium, and radium isotopes
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