Naming Covalaent Compounds

Naming Binary Compounds of Nonmetals When naming a binary compound formed by two nonmetals, we use a different system to name them. When naming a binary compound formed by two nonmetals, we use a different system to name them. We use prefixes to describe the number of each atom present for the element. We use prefixes to describe the number of each atom present for the element.

Naming Binary Compounds of Nonmetals The prefixes are: Mono- one Mono- one Di- two Di- two Tri- three Tri- three Tetra- four Tetra- four Penta- five Penta- five Hexa- six Hexa- six Hepta- seven Hepta- seven Octa- eight Octa- eight Nona- nine Nona- nine Deca- ten Deca- ten

Naming Binary Compounds of Nonmetals This is how it is done: This is how it is done: 1.The prefix indicating the # of atoms in the first element. 2.Name of the first element. 3.Prefix indicating the number of atoms in the second element. 4.Root name of the second element with an – ide.

Naming Binary Compounds of Nonmetals PCl 3 Name this compound Phosphorus We usually use the mono- prefix for the second element if necessary Trichloride

Naming Binary Compounds of Nonmetals Example: Example: –N2O4–N2O4–N2O4–N2O4 –Dinitrogen tetroxide Example: Example: –SF 6 –Sulfur hexafluoride