o2
because think about it o is for oxygen and the the di in dioxide means 2 ( by the way oxide is oxygen)
The chemical formula (not symbol) of lead dioxide is: PbO2.
The oxygen ion is O(2-).
Nitraite = NO3 One Nitrogen atom (N) Three Oxygen atoms (O3)
The symbol for the fluoride ion is F-.
The chemical symbol for the boron ion is B3+.
The symbol for the chloride ion is Cl-.
The ion symbol for sodium is Na+.
the symbol for Oxygen is O, the Oxygen ion is 2-. therefore the symbol for the oxygen ion is O2-
Nitraite = NO3 One Nitrogen atom (N) Three Oxygen atoms (O3)
Bromate is a polyatomic ion made of Bromine and oxygen: BrO3-
Permanganate Symbol is MnO4- Valency of the ion is -1, the manganese is +7 and the oxygen -2. Potassium Permanganate symbol is KMnO4.
the symbol of ion is base on the lemement that you are trying to fin out
The ion symbol for magnesium is Mg2+ as it loses 2 electrons to achieve a stable electron configuration.
The chemical symbol for the boron ion is B3+.
O2- is the symbol for the oxide ion, which is an oxygen atom that has gained two electrons. The oxide ion has a charge of -2.
the chemical symbol for boron ion is B+++
The ion symbol for sodium is Na+.
The symbol for the chloride ion is Cl-.
The symbol for the chlorite ion is ClO2-.