The full name of the ion NO3 is nitrate.
Nitrate is a polyatomic ion composed of one nitrogen atom and three oxygen atoms. It carries a charge of -1, which means it is negatively charged. Nitrate is commonly found in nature and is an important nutrient for plants. It is often utilized in fertilizers to promote plant growth. In addition to its agricultural significance, nitrate plays a role in various biochemical processes and can be found in water systems as a result of pollution from agricultural runoff.