Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.
Francium is extremely rare, and naturally unstable, as it is highly radioactive and the most stable isotope has a half-life of 21 minutes. This means that if a francium atom is formed it will almost certainly disappear very, very quickly. At any one time there is only about 25g of naturally occurring francium in the whole of Earth. Its extreme rarity means it is very difficult to find.