Characteristics. Francium is the most unstable of the naturally occurring elements: its most stable isotope, francium-223, has a half-life of only 22 minutes.
This WebElements periodic table page contains the essentials for the element francium
Francium's properties, interesting facts, discovery, videos, images, states, energies, appearance and characteristics.
Element Francium (Fr), Group 1, Atomic Number 87, s-block, Mass . Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
What's in a name? Named for the country of France. Say what? Francium is pronounced as FRAN-see-em. History and Uses: Francium was discovered by Marguerite Catherine ...
Properties of francium. Francium is both the heaviest of the known alkali metals and the most unstable of the first 101 elements in the Periodic Table.
Get periodic table information on the chemical and physical properties of the element francium (Fr), and its discovery.
Examples from the Web for francium Expand Historical Examples The last of the original 92 elements to be discovered was element 87, francium. A Brief History of ...
Francium (IPA: /ˈfrænsiəm/), formerly known as eka-caesium and actinium K, is a chemical element that has the symbol Fr and atomic number 87. It has the lowest ...
Basic information, atomic structure, and isotopes table.