The formula for a nonpolar molecule is:
```
AXn
```
where:
* A is the symbol for the central atom
* X is the symbol for the surrounding atoms
* n is the number of surrounding atoms
Some examples of nonpolar molecules include:
* H2 (hydrogen gas)
* O2 (oxygen gas)
* CO2 (carbon dioxide)
* CH4 (methane)
* C6H6 (benzene)
These molecules have an equal number of positive and negative charges, so they are nonpolar.