What are the chemical properties of francium?

Francium. Francium is extremely rare. Because of this its chemical and physical properties are not known. It has been studied by radiochemical techniques, which show that its most stable state is the ion Fr+. Francium is the least electronegative of all the known elements. Applications. read more

Francium. Francium is extremely rare. Because of this its chemical and physical properties are not known. It has been studied by radiochemical techniques, which show that its most stable state is the ion Fr+. Francium is the least electronegative of all the known elements. Applications. No use has been found for what little francium can be produced. read more

Properties: The melting point of francium is 27 °C, boiling point is 677 °C, and its valence is 1. Francium is the heaviest known member of the alkali metals series. It has the highest equivalent weight of any element and is the most unstable of the first 101 elements of the periodic system. read more

Atoms of the same element with different numbers of neutrons. CAS number The Chemical Abstracts Service registry number is a unique identifier of a particular chemical, designed to prevent confusion arising from different languages and naming systems. read more