Yes, the perbromate ion has a -1 charge
Sodium perbromate is not a polyatomic ion. It is an ionic compound formed by combining sodium (Na +1 ) ions with perbromate ions (BrO4 -1). Perbromate by itself would be a polyatomic ion.
That's silver(I) perbromate. Silver's most common valence state is +1. The perbromate anion has one more oxygen than the "parent" bromate polyatomic, hence the "per-" prefix. The charge of perbromate is -1. Therefore, the silver cation and the perbromate anion bond in a 1:1 ratio with the formula AgBrO4.
What is the percent of bromine in calcium perbromate? (The perbromate ion is BrO4-1.)
The chemical name of Br3O8 is Tribromine Octoxide.
Phosphite has an ionic charge of -3.
The chemical formula for ammonium perbromate is NH4BrO4.
The ionic charge of stannous (tin) is typically +2.
The ionic charge of bromate ion (BrO3-) is -1.
The chemical formula for beryllium perbromate is Be(BrO4)2.
Iodine typically has an ionic charge of -1.
The ionic charge of chloride ions is -1.
The compound is K2SO4 (potassium sulfate) Potassium (K) has a 1+ ionic charge. Sulfur (S) has a 2- ionic charge. Oxygen (O) has a 2- ionic charge.