Silver (Ag) is an element. Silver (Ag^+) is an ion. In neither case is it a formula unit. A formula unit applies to ionic solids, like NaCl, etc.
AgH is the formula for silver hydride.
The chemical formula of silver phosphide ia Ag3P. The ion of silver is Ag+.
The formula mass of any molecule, formula unit, or ion is the sum of the average atomic masses of all atoms represented in its formula.
positive ion - magnesium(cation) negative ion-chloride (anion)
One formula unit of silver sulfate, Ag2SO4 has 7 atoms.
AgH is the formula for silver hydride.
Silver chloride: AgCl
The silver ion is Ag+ and the perchlorate ion is ClO4-, so silver perchlorate would have the formula of AgClO4.
The formula unit is Ag2SO4, which contains two silver atoms, one sulfur atom, and four oxygen atoms for a total of seven atoms.
formula unit
Nitrite ion
The chemical formula of silver phosphide ia Ag3P. The ion of silver is Ag+.
There is only one chloride ion in the formula unit of sodium chloride.
+1. The ionic formula is Ag+ Cl-
4
MgO. Both the magnesium cation and the oxide anion are divalent, so that each ion neutralizes the charge of the other ion.
The formula mass of any molecule, formula unit, or ion is the sum of the average atomic masses of all atoms represented in its formula.