Element charge lookup

What Is the Charge of Beryllium?

Beryllium commonly forms Be2+ in introductory ionic compounds.

Quick answer: Beryllium usually has a common ionic charge of +2, written as Be2+.
ElementBeryllium
SymbolBe
Atomic number4
Common ionic charge+2
Common ionsBe2+

Why Beryllium has this charge

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

Beryllium charge examples

BeCl2

Beryllium chloride

Be2+ balances chloride ions.

BeO

Beryllium oxide

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

FAQ

Is Beryllium 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