A polyatomic anion is a tightly bound group of atoms that behaves as a unit and has a negative charge.
A monatomic anion consists of a single atom with a negative charge.
No, potassium iodide is a compound composed of the monatomic ion K+ (potassium cation) and the monatomic ion I- (iodide anion). It is not a polyatomic ion.
CaSO4 is a polyatomic ionic compound. It consists of a metal cation (Ca2+) and a polyatomic anion (SO42-) that are attracted to each other through ionic bonds.
The PO4^3- ion is a polyatomic anion. It consists of a group of atoms with an overall negative charge.
Flouride
polyatomic anion
This is a polyatomic anion.
Sodium chloride (NaCl) is a binary salt consisting of a metal cation and a monatomic nonmetal anion. Magnesium sulfate (MgSO4) is a ternary salt consisting of a metal ion and a polyatomic anion (which itself consists of two different nonmetals.)
That the anion comes second in the formula name and is ended by the suffix ide.Example.Na +-----------the cationCl ----------------------the anion ( from chlorine )form,NaCl---------------------Sodium chloride
An example of this type of compound is ammonium sulfate (NH4)2SO4, where the polyatomic cation is ammonium (NH4+) and the polyatomic anion is sulfate (SO4^2-). In this case, the atoms in the sulfate anion are all from the same group in the periodic table (Group 16 or the oxygen family).
Anions end in -ide if they are monatomic. Example: chlorine becomes "chloride." Polyatomic ions will have different suffixes.
Anions end in -ide if they are monatomic. Example: chlorine becomes "chloride." Polyatomic ions will have different suffixes.
Anions end in -ide if they are monatomic. Example: chlorine becomes "chloride." Polyatomic ions will have different suffixes.