Naming and writing formulas for all types of compounds Figure out the charge, put it in a parentheses Ionic compounds contain a cation and an anion. Molecular.

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Naming and writing formulas for all types of compounds Figure out the charge, put it in a parentheses Ionic compounds contain a cation and an anion. Molecular compounds contain only nonmetals.

To name an ionic compound. Look at the first element. If it is a Group I or IIA metal or NH 4 1+ fill in the blanks: ____________ ______________ cation anion

To name an ionic compound. Look at the first element. If it is a transition metal or other metal, but not Ag 1+, Zn 2+, Cd 2+, Al 3+ fill in the blanks. __________ ( ) ___________ Cation (charge of cation) anion

Example: CrCl 3 If it is a transition metal or other metal, but not Ag 1+, Zn 2+, Cd 2+, Al 3+ fill in the blanks. __________ ( ) ___________ Cation (charge of cation) anion Cr ?+ Cl 1- 3 Cr ?+ (-3) = 0 Cr 3+ Cl 1- 3 Chromium III chloride

Covalent Compounds If the first element is a nonmetal (but not ammonium, NH 4 1+ ) the compound is covalent. _____ ______________ ____ ____________-ide Prefix name of first element prefix name of second element - ide

Covalent Compounds Prefixmeaning Mono1 Di2 Tri3 Tetra4 Penta5 Hexa6 Hepta7 Octa8 Nona9 Deca10 _____ ______________ ____ ____________-ide Prefix name of first element prefix name of second element - ide Example N 2 O Di nitrogen mono ox

Summary Covalent Prefix # Mono1 Di2 Tri3 Tetra4 Penta5 Hexa6 Hepta7 Octa8 Nona9 Deca10 Covalent - Molecular _____ ______________ ____ ____________-ide Prefix name of first element prefix name of second element - ide Ionic If it is a transition metal or other metal, but not Ag 1+, Zn 2+, Cd 2+, Al 3+ fill in the blanks. __________ ( ) ___________ Cation (charge of cation) anion If it is a Group I or IIA metal, NH 4 1+, Ag 1+, Zn 2+, Cd 2+, or Al 3+ fill in the blanks: ____________ ___________ cation anion