Element charge lookup

What Is the Charge of Technetium?

Technetium commonly forms Tc4+ Tc7+ in introductory ionic compounds.

Quick answer: Technetium usually has a common ionic charge of +4 or +7, written as Tc4+ or Tc7+.
ElementTechnetium
SymbolTc
Atomic number43
Common ionic charge+4, +7
Common ionsTc4+, Tc7+

Why Technetium has this charge

Technetium 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.

Technetium charge examples

TcCl4

Technetium chloride

Tc4+ balances chloride ions.

Tc2O3

Technetium oxide

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

FAQ

Is Technetium 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