RuCl3
Ruthenium chloride
Ru3+ balances chloride ions.
What Is the Charge of Ruthenium?
Ruthenium commonly forms Ru3+ Ru4+ in introductory ionic compounds.
Quick answer: Ruthenium usually has a common ionic charge of +3 or +4, written as Ru3+ or Ru4+.
| Element | Ruthenium |
|---|---|
| Symbol | Ru |
| Atomic number | 44 |
| Common ionic charge | +3, +4 |
| Common ions | Ru3+, Ru4+ |
Why Ruthenium has this charge
Ruthenium 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.
Ruthenium charge examples
Ru2O3
Ruthenium oxide
Ruthenium can form oxides where total positive and negative charge balances.
FAQ
Is Ruthenium 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.