Naming Covalent.

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Presentation transcript:

Naming Covalent

Naming Covalent Compounds Name first element. The subscript becomes the prefix Mono=1 Di=2 Tri=3 Tetra=4 Penta=5 Hexa=6 Hepta=7 Octa =8 Nano=9 Deca=10 Do Not write mono on the first element Name second element with –ide ending The subscript becomes the prefix even if it is mono When two a’s, o’s or o and a are together, drop the first for pronunciation purposes

Writing Formulas For Covalent Compounds Write the symbol for the first element The prefix becomes the subscript Write the symbol for the second element

Examples Name S2O3 Name SO Write the formula for silicon dioxide Write the formula for nitrogen triiodide