In the nature francium exists only in infinitesimal amounts and because of this, it is considered generally an artificial element. Francium reacts with water.
Francium was found by Marguerite Derey of the Curie Institute of France in 1939.
Francium doesn't exist in air.
Francium is a member of the alkali metals family.
Natural francium exist in uranium and thorium ores.Artificial francium is obtained in particle accelerators.
Francium is not exclusively found in France, but rather, it is found throughout the Earth in extremely small quantities. Francium was discovered by a French scientist, Marguerite Perey.
Francium exist in uranium and thorium ores but it is not exploitable.
francium is commonly found as hard rock unless it comes from gravestones
Francium exist in infinitesimal concentrations in uranium and thorium ores.
It was found in 1939.
It is estimated that only approx. 30 g francium exist on the Earth.
Francium exist in uranium and thorium ores; the chemical form is not known.
francium is found in thorium and uranium ores in the earth's crust obtained by the decay of actinium