Inert gases are example of gaseous molecule which is monoatomic.
The noble gases are monatomic gases as they are unreactive in nature which is a property of these gases. They do find applications in daily life like:
- Helium is used in filling balloons as their density is lower than that of the air.
- Neon is used for creating advertising signs as they glow when electricity flows through it.
- Argon is used in a light bulb to prevent burning of the filament as it is unreactive in nature