BeCl2
Beryllium chloride
Be2+ balances chloride ions.
Beryllium commonly forms Be2+ in introductory ionic compounds.
| Element | Beryllium |
|---|---|
| Symbol | Be |
| Atomic number | 4 |
| Common ionic charge | +2 |
| Common ions | Be2+ |
Beryllium is an alkaline earth metal, so it commonly loses two electrons and forms a +2 ion.
Beryllium chloride
Be2+ balances chloride ions.
Beryllium oxide
Beryllium can form oxides where total positive and negative charge balances.
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.
Combine positive and negative ions so the total charge is zero. You can also use the ionic compound calculator.
Use the periodic table with charges or the ionic charges chart.