Fe(ClO4)2 is Ferrous pechlorate or Iron(II) pechlorate, however it is not a stable compound (auto-redox)
ferrous perchlorate
The silver ion is Ag+ and the perchlorate ion is ClO4-, so silver perchlorate would have the formula of AgClO4.
The chemical formula of lead(IV) perchlorate is Pb(ClO4)4.
Ammonium Perchlorate
Ferrous sulphate, or iron (II) sulphate has the formula FeSO4.
ferrous perchlorate
The general formula of a perchlorate is MeClO4, where Me is a metal. The anion perchlorate is monovalent.
The silver ion is Ag+ and the perchlorate ion is ClO4-, so silver perchlorate would have the formula of AgClO4.
Formula: ClO4-
ClO4-
ClO4-
ClO4-
Formula: NH4ClO4
The formula is ClO4-
The formula for ferrous sulphate is FeSO4.
NH4ClO4
AgClO4