Francium

Francium is an element. It is very unstable and radioactive. It lasts very short. If it existed, it would be very reactive, more reactive than caesium. It is the heaviest alkali metal. It melts very easily.

Francium
Properties
Atomic symbol	Fr
Atomic number	87
Classification	Alkali Metals
Atomic mass	223 amu
Other Information
Date of discovery	1939
Name of discoverer	Marguerite Perey
Name origin	Named after France.
Uses	None.
Obtained from	Not commercially available, it is formed by the decay of actinium.