1. Binary Molecular Compounds Nonmetal + Nonmetal

2. Binary Compounds Containing Two Nonmetals To name these compounds, give the name of the less electronegative element first with the Greek prefix indicating the number of atoms of that element present, followed by the name of the more electronegative non- metal with the Greek prefix indicating the number of atoms of that element present and with its ending replaced by the suffix –ide. Prefixes you should know: Mono Di Tri Tetra Penta Hexa Hepta Octa Nona Deca 1 2 3 4 5 6 7 8 9 10

3. Binary Compounds Containing Two Nonmetals (Type III Compounds) 1.________________ diarsenic trisulfide 2.________________sulfur dioxide 3. P 2 O 5 ____________________ 4.________________ carbon dioxide 5. N 2 O 5 ____________________ 6. H 2 O____________________ As 2 S 3 SO 2 diphosphorus pentoxide CO 2 dinitrogen pentoxide dihydrogen monoxide

4. Naming Binary Compounds Binary Compound? Metal Present? Does the metal form more than one cation? Type III Use Greek Prefixes Type I Use the element name for the cation. Type II Determine the charge of the cation; use a Roman numeral after the cation name. Yes No Zumdahl, Zumdahl, DeCoste, World of Chemistry  2002, page 98

5. Covalent Binary Compounds: Nonmetal-Nonmetal Combinations Keys Covalent Binary Compounds: Nonmetal-Nonmetal Combinations