two elements with ions with a 2 plus charge are Sulfurand Oxygen
Chloride ions have a charge of 1-. Since the charge on an Mg ion is 2+, the formula unit of Magnesium Chloride is MgCl2. There are 2 chloride ions for each Mg ion.
There are two chloride ions in MgCl2.
All alkaline earth metal ions have a charge of +2
The charge on the Sc ions in Sc2O3 is 3+. This can be determined by recognizing that oxide ions always have a charge of 2-, and there are three of them, so the total oxide charge is 6-. There are two scandium ions, and since the compound must be neutral, the total charge on the two scandium ions has to be 6+, so the charge on each scandium ion is 3+.
Ammonium ions have a charge of +1 and Chromate ions have a charge of -2. When these ions react, they form Ammonium Chromate; 2NH4CrO4
maybe rust
Plus charge, ie, it has H3O^+ ions (hydronium ions)
Fe 2+ is Ferrous Fe 3+ is Ferric
This are alpha particles which are made up of Helium ions and are +2 charge.
Calcium ions have a charge of plus two, and bromine ions have a charge of minus one.
Ba3N2
Iron ions with 2+ are known as ferrous and with 3+ is called as ferric.
Cations.
Chloride ions have a charge of 1-. Since the charge on an Mg ion is 2+, the formula unit of Magnesium Chloride is MgCl2. There are 2 chloride ions for each Mg ion.
There are two chloride ions in MgCl2.
The charge on sulphate ions is 2- (SO42-).
AlCl3