Francium was discovered by Marguerite Perey in 1939.
The total amount of the francium in the Earth crust is approx. 30 grams.
The total amount of the francium in the Earth crust is approx. 30 grams.
The total amount of the francium in the Earth crust is approx. 30 grams.
The total amount of the francium in the Earth crust is approx. 30 grams.
Francium was discovered by Marguerite Perey in 1939.
Francium is the second rarest element on earth so that's probably why it took a little longer to discover.
Francium is named after France, which is where the element was isolated in 1939 by Marguerite Perey. Traces of francium occur naturally in uranium-containing minerals. francium is very rare so it took time to find it (i think)
cause i needed a big pis and then got tired it was my fault it took so long [[[[:)
The total amount of the francium in the Earth crust is approx. 30 grams.
The total amount of the francium in the Earth crust is approx. 30 grams.
Francium exist only in infinitesimal traces in thorium and uranium ores and is very unstable. (Read about its discovery history in wikipedia link: en.wikipedia.org/wiki/Francium#History
Back then they did not know what radioactivity was There wasn't the right equipment to discover it at the time It comes from Uranium, which doesn't last for that long...it has a half life of 21 minutes Very rare, 30g in the world at one time