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 compoundscontain onlynonmetals.

To name an ionic compound. Look at the first element.

If it is a Group I or IIA metal or NH41+ 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 Ag1+, Zn2+, Cd2+ , Al3+ fill in the blanks.__________ ( ) ___________Cation (charge of cation) anion

Example: CrCl3

If it is a transition metal or other metal, but not Ag1+, Zn2+, Cd2+ , Al3+ fill in the blanks.__________ ( ) ___________Cation (charge of cation) anion

Cr?+ Cl1-3

Cr?+ (-3) = 0

Cr3+ Cl1-3

Chromium III chloride

Covalent Compounds• If the first element is

a nonmetal (but not ammonium, NH4

1+) the compound is covalent.

_____ ______________ ____ ____________-idePrefix name of first element prefix name of second element - ide

Covalent Compounds

Prefix meaning

Mono 1

Di 2

Tri 3

Tetra 4

Penta 5

Hexa 6

Hepta 7

Octa 8

Nona 9

Deca 10

_____ ______________ ____ ____________-idePrefix name of first element prefix name of second element - ide

• Example N2ODi nitrogen mono ox

Summary Covalent

Prefix#

Mono 1

Di 2

Tri 3

Tetra 4

Penta 5

Hexa 6

Hepta 7

Octa 8

Nona 9

Deca 10

Covalent - Molecular_____ ______________ ____ ____________-idePrefix name of first element prefix name of second element - ide

IonicIf it is a transition metal or other metal, but not Ag1+, Zn2+, Cd2+ , Al3+ fill in the blanks.__________ ( ) ___________Cation (charge of cation) anion

If it is a Group I or IIA metal, NH41+

, Ag1+, Zn2+, Cd2+ , or Al3+ fill in the blanks:____________ ___________ cation anion