1. Ch 5 Covalent Bonding Remember… Covalent molecules are made from 2 or more nonmetals and the electrons are “shared.”

2. Diatomic Molecules Gases made of two atoms of the same element.
Naming – just use the element name
Hydrogen
Fluorine

4. Prefixes Used in Covalent Molecules
Don’t use for first element

5. Example

6. Practice HI hydrogen iodide NF3 nitrogen trifluoride SO2
sulfur dioxide
N2Cl4
dinitrogen tetrachloride
TOXIC!
NO2
nitrogen dioxide
N2O
dinitrogen monoxide
Laughing Gas

7. More Practice P4S3 I2O5 CS2 B2Cl4 Tetraphosphorus trisulfide
Diiodine pentoxide
Carbon disulfide
Diboron tetrachloride

8. Naming Covalent Molecules
- just follow the name
prefixes tell what the subscripts should be of each element
Examples:
Phosphorus triiodide
Chlorine tetrabromide
Tetraphosphorus hexoxide
PI3
ClBr4
P4O6