At Standard Temperature and Pressure (STP), which is defined as a temperature of 0 degrees Celsius and a pressure of 1 atmosphere, there are several elements that exist in a gaseous state. These elements are:
- Hydrogen (H)
- Helium (He)
- Neon (Ne)
- Argon (Ar)
- Krypton (Kr)
- Xenon (Xe)
- Radon (Rn)
- Nitrogen (N)
- Oxygen (O)
- Fluorine (F)
- Chlorine (Cl)
These gases comprise a mixture of both monatomic noble gases and diatomic gases that are vital for various processes on Earth. For example, nitrogen and oxygen are crucial for supporting life, while noble gases have applications in lighting and electronics.