Writing Ionic Polyatomic Formulas

​Ionic Compounds

​Have your periodic tables ready!

• Molecules with a Charge

• Use the name as is on the polyatomic ion chart - no changing the ending

​

​You have a polyatomic ion chart on your resource sheet!

​Polyatomic Ions

​

Multiple Choice

What is the name of this compound?

Na₃PO₄

• trisodium tetraphosphate

• sodium phosphate

• sodium phosphorus oxide

• sodium (III) phosphate (IV)

Multiple Choice

What is the name of this compound?

NH₄Cl

• ammonium chloride

• nitrogen hydride chloride

• nihonium chloride

• ammonium (IV) chloride

Fill in the Blank

What is the name of this compound?

Mg₃(PO₄)₂

Fill in the Blank

What is the name of this compound?

Al(CN)₃

They work the same way as the other ions - find the charge on the polyatomic ion table and then balance it.​

​Polyatomic Ions

Charges vary, so find the charge in the name (roman numerals)​

​Transition Metals

​Special Cases

Some text here about the topic of discussion

Multiple Choice

What is the formula for this compound?

iron (III) nitrate

• Fe₃NO₃

• FeN₃O₉

• Fe(NO₃)₃

• FeNO₃

Multiple Choice

What is the formula for this compound?

manganese (III) sulfite

• Mn₂(SO₃)₃

• MnSO₃

• Mn₃(SO₃)₂

• MgSO₃

Multiple Choice

What is the formula for this compound?

titanium (II) acetate

• Ti(C₂H₃O₂)₂

• Ti₂At

• Ti(C₂H₃O₂)

• TiAt₂

Multiple Choice

What is the name of Sr₃N₂?

• strontium nitride

• tristrontium dinitride

• strontium nitrogen

• strontium (II) nitride

Multiple Choice

What is the formula for copper (II) chlorate?

• Cu(ClO₃)₂

• Cu(ClO₃)

• Cu₂(ClO₃)

• CuCl₂