The heaviest alkali metal,
its lifetime is quite fatal.
Twenty-two minutes half time,
quite short to really shine.

It is radioactive and unstable,
its finding was long time not able.
Marguerite Perey found what was predicted,
her honoration conflicted.

A woman in academic fields,
hard for honoration yields.
Educated by Marie Curie,
she celebrated her debut.

It is the second rarest element,
and honestly, not that relevant.
There is no direct use for francium,
found as traces in uranium.

It is the second most positive material,
probably it can teach us afterall,
be positive and change if you are unstable,
this way you find a proper lifestyle label.