Francium is a strongly radioactive element and is of course dangerous.
Francium hasn't a practical use.
Francium is a highly reactive alkali metal that readily reacts with acids to produce francium salts and hydrogen gas. The reaction is very vigorous and can be explosive due to francium's extreme reactivity. Francium's scarcity and radioactivity make studying its reactions challenging.
Hydrogen and francium can combine to form a compound with the formula HFr, which stands for hydrogen francium. This compound would be highly unstable and reactive due to the extremely high reactivity of francium. Francium is a rare and radioactive element that is highly unstable and difficult to handle, making it unlikely to form stable compounds with hydrogen.
Because francium was obtained only in very small samples, insufficient for the determination of physical properties.
Not known today but probably francium don't burn.
Francium has not applications and the oxide cannot be prepared.
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.
Yes, francium can conduct heat like other metals because it has high thermal conductivity. However, the extremely low abundance of francium and its radioactivity make it impractical for widespread use in heat conduction applications.
As francium is a chemical element, it is made up of protons, neutrons and electrons.