Element charge lookup

What Is the Charge of Europium?

Europium commonly forms Eu2+ Eu3+ in introductory ionic compounds.

Quick answer: Europium usually has a common ionic charge of +2 or +3, written as Eu2+ or Eu3+.
ElementEuropium
SymbolEu
Atomic number63
Common ionic charge+2, +3
Common ionsEu2+, Eu3+

Why Europium has this charge

Europium is an lanthanide. Its chemistry can be specialized, but +2, +3 is the most useful introductory reference range.

This is a classroom reference range, not an exhaustive list of all oxidation states.

Europium charge examples

EuCl2

Europium chloride

Eu2+ balances chloride ions.

EuO

Europium oxide

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

FAQ

Is Europium 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