"Francium-223 forms naturally during the radioactive decay of other elements, but it is estimated that there is only about 30 grams [1 ounce] of francium in the entire crust of the Earth at any ...

Eric Scerri recounts the story of element 87, which after a number of false starts was finally tracked down in France — and named in its honour.

Observations made after its discovery revealed that francium-223 has a half-life of just 22 minutes, which means it takes this long for half of the atoms in a sample of francium to decay.

Observations made after its discovery revealed that francium-223 has a half-life of just 22 minutes, which means it takes this long for half of the atoms in a sample of francium to decay.

Improved modelling of nuclear structure in francium aids searches for new physics Date: August 5, 2020 Source: University of Queensland Summary: Thanks to new research, we now know with much ...

Francium is an alkali metal that occurs naturally as a radioactive decay product of actinium. While 29 isotopes have been identified, knowledge and properties are scarce, owing to its instability.