Francium

Alkali metal

Symbol: Fr

Atomic Number: 87

Standard State: Solid

Atomic Mass: 223.0197

Electron Configuration: [Rn]7s1

Electronegativity: 0.7

Atomic Radius: 348

Ionization Energy: 3.9

Melting Point: 300

Boiling Point:

Density:

Year Discovered: 1939