Molecular Compounds. Outline  Molecular Compounds  Diatomic Molecules  Naming Molecular Compounds  Combining Capacity.

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Presentation transcript:

Molecular Compounds

Outline  Molecular Compounds  Diatomic Molecules  Naming Molecular Compounds  Combining Capacity

Molecular Compounds  Molecular compounds are made of non-metal atoms that share electrons to become stable.  The result is a covalent bond that holds the atoms together.  Also called Covalent compounds.  Eg. sugar, water

Molecular Compounds

Diatomic Molecules  Molecules made of two atoms of the same element.  Share a covalent bond.  Eg. H 2, O 2, N 2, F 2, Cl 2, Br 2, I 2

Diatomic Molecules

Naming Molecular Compounds  The name of molecular compounds contains prefixes.  These prefixes count the number of each atom when two elements form different combinations.

Naming Molecular Compounds PrefixNumber Example (formula) mon(o)1 carbon monoxide (C0) di2 carbon dioxide (CO 2 ) tri3 sulfur trioxide (SO 3 ) tetra4 carbon tetrafluoride (CF 4 ) penta5 Phosphorus pentabromide (PBr 5 )

How to Write the Chemical Formula for Molecular Compounds Looking at the name and the prefixes used, you can see how many atoms of each element are in the compound. Eg. dinitrogen trioxide ‘di’ indicates there are two nitrogen atoms ‘di’ indicates there are two nitrogen atoms ‘tri’ indicates there are 3 oxygen atoms ‘tri’ indicates there are 3 oxygen atoms N 2 O 3

Molecular Compounds in Everyday Life