Table 3:
Classifying atoms in 5 categories (AC5).
| Atom type | Category number |
|---|---|
| Hydrogen | 1 |
| Oxygen and Nitrogen | 2 |
| Carbon with hybridization value < 3 | 3 |
| Carbon with hybridization value = 3 | 4 |
| Others | 5 |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.