NpCl3
Neptunium chloride
Np3+ balances chloride ions.
What Is the Charge of Neptunium?
Neptunium commonly forms Np3+ Np4+ Np5+ Np6+ in introductory ionic compounds.
Quick answer: Neptunium usually has a common ionic charge of +3 or +4 or +5 or +6, written as Np3+ or Np4+ or Np5+ or Np6+.
| Element | Neptunium |
|---|---|
| Symbol | Np |
| Atomic number | 93 |
| Common ionic charge | +3, +4, +5, +6 |
| Common ions | Np3+, Np4+, Np5+, Np6+ |
Why Neptunium has this charge
Neptunium is an actinide. Its chemistry can be specialized, but +3, +4, +5, +6 is the most useful introductory reference range.
This is a classroom reference range, not an exhaustive list of all oxidation states.
Neptunium charge examples
Np2O3
Neptunium oxide
Neptunium can form oxides where total positive and negative charge balances.
FAQ
Is Neptunium 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.