Dangerous when met by water

Francium Wanted

Element symbol: Fr

Atomic number: 87

Atomic mass: 223u

Cost: unavailable

Contact Brent Baird if found.

The electron configuration for Francium is: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s1

It was discovered by Marguerite Catherine Perey in 1939. It was named after the country of France, and only lives for about 23 minutes.