Element charge lookup

What Is the Charge of Barium?

Barium commonly forms Ba2+ in introductory ionic compounds.

Quick answer: Barium usually has a common ionic charge of +2, written as Ba2+.
ElementBarium
SymbolBa
Atomic number56
Common ionic charge+2
Common ionsBa2+

Why Barium has this charge

Barium is an alkaline earth metal, so it commonly loses two electrons and forms a +2 ion.

Barium charge examples

BaCl2

Barium chloride

Ba2+ balances chloride ions.

BaO

Barium oxide

Barium can form oxides where total positive and negative charge balances.

FAQ

Is Barium charge the same as oxidation state?

Ionic charge is the charge on an actual ion. Oxidation state is a bookkeeping number used inside compounds. They can match, but they are not always the same thing.

How do I use this in formulas?

Combine positive and negative ions so the total charge is zero. You can also use the ionic compound calculator.

Sources and data notes

More element charges