Name: Francium
Symbol: Fr
Atomic Number: 87
AtomicWeight: 223.000000
Family: alkali metals
CAS RN: 7440-73-5
Description: Metallic, very rare and radioactive
State (25 °C): Solid
Melting Point: 300 °K
Boiling Point: 950 °K
Density: 1.87 g/cm³
Oxidation states: +1
Electron Configuration: [Rn] 7s¹
Radius: no data pm (Covalent)
Electronegativity: .7 (Pauling Scale)

1st Ionization Energy: 380 KJ/mole
2nd Ionization Energy: – KJ/mole
3rd Ionization Energy: – KJ/mole