Element charge lookup

What Is the Charge of Indium?

Indium commonly forms In+ In3+ in introductory ionic compounds.

Quick answer: Indium usually has a common ionic charge of +1 or +3, written as In+ or In3+.
ElementIndium
SymbolIn
Atomic number49
Common ionic charge+1, +3
Common ionsIn+, In3+

Why Indium has this charge

Indium has common reference charges of +1, +3. Use the compound name and context to distinguish ionic charge from oxidation state.

Indium charge examples

InCl

Indium chloride

In+ balances chloride ions.

In2O

Indium oxide

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

FAQ

Is Indium 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