Francium element has 87 protons, 136 neutrons and 87 electrons.
Francium is a very unstable metal at room temperature.
Francium cation is Fr+.
» Common Francium compounds:
• Francium Sulfide, Fr2S
• Francium Phosphide, Fr3P
• Francium Bromide, FrBr
• Francium Acetate, FrC2H3O2
• Francium Sulfite, Fr2SO3