Writing Complex Ion Formulas

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Writing Complex Ion Formulas : 

Writing Complex Ion Formulas Central ion is first Ligands second Negative ligands first Neutral molecules second Neutral molecules and polyatomic ions are always surrounded by (parentheses), even if only 1 present Entire complex ion formula surrounded by [brackets]

Practice Writing a Positive Complex Ion Formula : 

Practice Writing a Positive Complex Ion Formula Write the formula for the diamminepalladium(II) ion Central ion – palladium (Pd) Ligands – NH3 (2) Written inside parentheses Neutral charge Brackets around entire formula Calculate the net charge [Pd(NH3)2]+2

Practice Writing a Negative Complex Ion Formula : 

Practice Writing a Negative Complex Ion Formula Write the formula for the carbonylpentacyanoferrate(II) ion Central ion – iron (Fe) Ligands CN (5) -1 charge Written inside parentheses CO (1) Neutral Written inside parenteses Brackets around entire formula Calculate the net charge [Fe(CN)5(CO)]-3

Try these on your own!Write formulas for the following Complex Ions : 

Try these on your own!Write formulas for the following Complex Ions [Pt(NH3)4]+2 [AuI4]- [Fe(CO)5(NO)]+2 Tetraammineplatinum(II) ion Tetraiodoaurate(III) ion Pentacarbonylnitrosyliron(II) ion