COVALENT BOND

LESSON THREE

COVALENT BOND

COVALENT BOND

Results in the sharing of valence electrons. This bonding occurs between two non - metals.

A neutral particle that forms as a result of electron sharing is called a MOLECULE.

Naming Covalent Compounds

Name the first non - metal.

The second non - metal is named by changing its suffix with - ide.

A prefix such as mono, di, tri, etc. is used in front of each element to denote the number of atoms present in the element.

Prefixes for Naming Covalent Compounds

Exceptions:

The first element in the formula never uses the word mono.

CO

Monocarbon dioxide

Carbon dioxide

Exceptions:

To avoid awkward pronounciation, drop the final letter in the prefix when the element name begins with a vowel.

CO

Carbon monooxide

Carbon monoxide

Example #1:

SO

Sulfur dioxide

Example #2:

Nitrogen trifluoride

NF

Example #3:

N H

Dinitrogen tetrahydride

Example #4:

Dinitrogen pentoxide

N O

Name the following covalent compounds.

1. CCl 2. N O 3. NBr 4. As O 5. NO

Write the chemical formula of the following compounds.

1. Sulfur dichloride2. Tetraphosphorous hexoxide 3. Oxygen difluoride 4. Sulfur hexafluoride 5. Tetrasulfur tetranitride

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