Francium reacts violently with water and liberates hydrogen gas.Electronegativity of francium is 0.7 on the Pauling scale. ![]() Out of all the elements of periodic table, the francium element has the least electronegativity.Chemical properties of FranciumĬhemical properties of francium are mentioned below. The atomic mass of most stable isotope of francium is 223 u and its estimated density is 2.48 g/cm 3.The most stable isotope of francium has a half-life of only 22 minutes.Francium is a highly radioactive element in the alkali metals group of periodic table.The crystal structure of francium is BCC (i.e body centered cubic), which is predicted from the extrapolation methods.Its melting point is 27 ☌, so it melts in a warm room. Physical properties of francium are mentioned below. The physical and chemical properties of francium element are mentioned below. Francium is considered to be the 2 nd rarest element found from the earth’s crust after astatine. ![]()
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