Input interpretation
group 4 ions | total number of protons
Total number of protons rankings
1 | titanium(IV) cation | 22 2 | titanium(III) cation | 22 3 | titanium(II) cation | 22 4 | titanide(1-) anion | 22 5 | zirconium(IV) cation | 40 6 | zirconium(III) cation | 40 7 | zirconium(II) cation | 40 8 | zirconium(I) cation | 40 9 | hafnium(IV) cation | 72 10 | hafnium(III) cation | 72 11 | hafnium(II) cation | 72 12 | rutherfordium(IV) cation | 104