Francium (was) is used only for studies in research laboratories.
Francium is a true chemical element, not an example.
Francium has any use.
These effects were not studied for francium but because francium is very radioactive it is harmful.
Francium doesn't exist in the environment.
Francium hasn't ores; infinitesimal amounts of francium exist in some uranium ores.
Impossible; francium hasn't ores - infinitesimal amounts of francium exist in some uranium ores.
francium is a rare element but might be useful in some ways.
Not really but some of the papers relating to it were published in "Physics & Astronomy". "Production of Francium". Francium. SUNY Stony Brook Physics & Astronomy. 2007-02-20.
Francium was named after France, the country it was dicovered in.
Not known today but probably francium don't burn.
Francium. See the related link for more information. In addition, Gallium comes from the the Latin word Gallia, the old name of France.