ReCl4
Rhenium chloride
Re4+ balances chloride ions.
What Is the Charge of Rhenium?
Rhenium commonly forms Re4+ Re7+ in introductory ionic compounds.
Quick answer: Rhenium usually has a common ionic charge of +4 or +7, written as Re4+ or Re7+.
| Element | Rhenium |
|---|---|
| Symbol | Re |
| Atomic number | 75 |
| Common ionic charge | +4, +7 |
| Common ions | Re4+, Re7+ |
Why Rhenium has this charge
Rhenium is a transition metal. Transition metals can have multiple charges, so compound names and roman numerals matter.
This is a classroom reference range, not an exhaustive list of all oxidation states.
Rhenium charge examples
Re2O3
Rhenium oxide
Rhenium can form oxides where total positive and negative charge balances.
FAQ
Is Rhenium 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.
Where can I see the full chart?
Use the periodic table with charges or the ionic charges chart.