the symbol of ion is base on the lemement that you are trying to fin out
the symbol for Oxygen is O, the Oxygen ion is 2-. therefore the symbol for the oxygen ion is O2-
Mg2+
They are usually called sodium ions, the symbol for them is Na+
When selenium gains two electrons, it becomes the selenide ion.
Beryllium (Be) has a valence of +2. The ion could be written as (Be^2) or (Be+2) …
ca2+
copper, Cu+ ,cuprous ion
It's name is just a zinc ion. Normally its symbol is Zn2+
the symbol for Oxygen is O, the Oxygen ion is 2-. therefore the symbol for the oxygen ion is O2-
Mg2+
The symbol Ca2+ is for the cation of calcium.
the chemical symbol for boron ion is B+++
the symbol for the magnesium ion is Mg2+
It is the cyanide ion. There should be a single negative charge on it
They are usually called sodium ions, the symbol for them is Na+
enter the symbol of a sodium ion followed by the formula of a sulfate ion
The symbol for an iodine ion is I- .