What is francium used for?
Does francium have any uses?
I actually did not know about this element other than its name. I looked
up some basic information on it (below). In summary, there is not much of
Francium around, and what there is or is made does not last for long
(disintegrates into lighter elements in a few hours). probably it is
being investigated or used in some physics experiments somewhere and it
seems unlikely to show up as a food additive at your grocery store anytime
Discovered in 1939 by Mlle Marguerite Perey of the Curie Institute, Paris.
Francium, the heaviest known member of the alkali metals series, occurs as
a result of an alpha disintegration of actinium. It can also be made by
artificially bombarding thorium with protons.
While it occurs naturally in uranium minerals, there is probably less than
an ounce of francium at any time in the total crust of the earth. It has
the highest equivalent weight of any element, and is the most unstable of
the first 101 elements of the periodic system. Thirty-three isotopes of
francium are recognized. The longest lived 223Fr (Ac, K), a daughter of
227Ac, has a half-life of 22 min. This is the only isotope of francium
occurring in nature. Because all known isotopes of francium are highly
unstable, knowledge of the chemical properties of this element comes from
radiochemical techniques. No weighable quantity of the element has been
prepared or isolated. The chemical properties of francium most resemble
cesium. Sources: CRC Handbook of Chemistry and Physics and the American
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Update: June 2012