See this link for the history of francium discovery.
Francium (was) is used only for studies in research laboratories.
Francium has any use.
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 is an extremely rare and highly radioactive element, making it difficult to find in nature. Due to its extreme rarity and radioactivity, francium is not commonly found in compounds. However, some theoretical compounds containing francium may include francium fluoride (FrF) or francium hydroxide (FrOH), although these would be highly unstable and challenging to create and study in a laboratory setting.
Francium is a highly reactive and radioactive metal that is very rare in nature. It is found in minute quantities in uranium and thorium ores. It has also been produced in laboratories through nuclear reactions.
Not known today but probably francium don't burn.
For the most part none do. However, some ceramics contain uranium in their glazes and uranium may form francium as it decays. As a result, some plates may or may not contain an atom of francium at any given time.
Francium has not applications and the oxide cannot be prepared.