Francium is very radioactive, very unstable and very scarce.
What are the disadvanteges of Hierarchical Model?
one of the disadvanteges of the wifi is the saffety ussues.
Not known today but probably francium don't burn.
Francium has not applications and the oxide cannot be prepared.
it can kill you
Francium is a metal.
Francium was named after France, the country it was dicovered in.
The chemistry of francium is not known; francium has properties similar to caesium.
We haven't sufficient francium for a measurement; also francium is autovaporized.
As francium is a chemical element, it is made up of protons, neutrons and electrons.
Francium is a radioacive chemical element; francium is natural but also may be prepared in laboratory.
Francium is not a commercial product.