Unit b matter and chemical change notes (naming molecular compounds)

1. Naming Molecular
Compounds

2. Naming Molecular Compounds
Step 1: Determine if the substance is a molecular or an ionic compound
Example: N2P5 (Non-metals)
Molecular compounds use Greek prefixes to tell us the number of each
atom. Copy the prefixes in your notes:

3. Naming Molecular Compounds
Example: N2P5 (Non-metals)
Step 2: Determine how many atoms of the first listed substance ​there are. (there
are 2 N’s)
Step 3: Attach the prefix for that number to the beginning of ​the elements name.
**If there is only one do not add a ​prefix to the first element.
Ex. 2=Di Dinitrogen
Step 4: Repeat step 2 and 3 for the second element.
** If there is only one atom use the prefix mono.
Ex. 5 = penta Dinitrogen pentaphosphorous
Step 5: Change the ending of the second element to and -ide ​ending.
Ex. Dinitrogen pentaphosphide

4. Simple Examples
Together:
NO2
Nitrogen Dioxide

5. Simple Examples
Try Yourself:
CO
Carbon Monoxide
S2Cl4
Disulfur Tetrachloride
B3I5
Triboron Pentaiodide