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.
Space-filling model of NH3 showing molecular polarity. Space-filling model was created using Avogadro, v1.0.3, software. Surface is pseudocolored to demonstrate surface charge characteristics (red—negative, blue—positive). A similar process was used to generate space-filling model of H2O. Molecules are not drawn to scale.
