formulasioniccompounds

Before you start watching please make sure you understand the following vocabulary:

Ion - any atom (or group of atoms) that have a collective charge

Monoatomic - ions with only one atom present Fe²⁺

You can predict monoatomic ions on the periodic table:

Polyatomic - ions with multiple atoms forming the ion C₂H₃O₂^{- Note: For polyatomic ions you will need a table to tell you the formulas/names}

You should also understand that ionic compounds are always written with the cation (positive part) first and the anion (negative part) second

Simple monoatomic ions

Using polyatomic ions

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