Francium is only one chemical element: but francium has ca. 40 isotopes and nuclear isomers.
Francium is similar to caesium.
Francium is one of rarest chemical elements.
The chemistry of francium is not known; it is probable that francium easy react with nonmetals.
The chemistry of francium is not known but francium is considered the most reactive metal.
Sodium and francium are elements. Elements are substances that cannot be broken down into simpler substances by chemical means, whereas compounds are substances composed of two or more elements chemically bonded together.
The atomic number of francium is 87.
As all chemical elements francium contain protons, neutrons and electrons.
As all chemical elements francium contain protons, neutrons and electrons.
Francium, Germanium
Francium(France), germanium(Germany), and europium(Europe).
Alkali metals are: lithium, sodium, potassium, rubidium, caesium and francium.
Francium has the largest atomic radius among all elements.