What was francium used for in World War 2?

Answer 1

It is very unlikely that the chemical element Francium was used in WW2. It was only discovered in 1939 and is the second most rare naturaly occurring element. Only around 1 ounce exists throughout the Earth's_crust.

There may have been some other substance that was called francium but I can find no reference to it.

There is a band called francium who's music is can be categorised as Hardcore, Powerpop and Screamo, but theye were definatly form some time after VJ day.