← Common Metal Ions Export Options Alphabetize Word-Def Delimiter Tab Comma Custom Def-Word Delimiter New Line Semicolon Custom Data Copy and paste the text below. It is read-only. Select All copper(I) ion Cu⁺ copper(II) ion Cu²⁺ iron(II) ion Fe²⁺ iron(III) ion Fe³⁺ mercury(I) ion Hg₂2⁺ mercury(II) ion Hg²⁺ Lead(II) ion Pb²⁺ Lead(IV) ion Pb⁴⁺ Tin(II) ion Sn²⁺ Tin(IV) ion Sn⁴⁺ Chromium(II) ion Cr²⁺ Chromium(III) ion Cr³⁺ Manganese(II) ion Mn²⁺ Manganese(III) ion Mn³⁺ Cobalt(II) Ion Co²⁺ Cobalt(III) ion Co³⁺