Respuesta :
francium oxide Fr₂O
Francium, as well as sodium, is in 1A group. Its valency is equal to unit.
Francium, as well as sodium, is in 1A group. Its valency is equal to unit.
Fr2O
Fr and Na are both in group 1 meaning they both have a +1 charge and will form similar compounds.
Fr and Na are both in group 1 meaning they both have a +1 charge and will form similar compounds.