Why are noble gases sometimes called inert gases?

The science. The noble gases, in order of their density, are helium, neon, argon, krypton, xenon and radon. They are called noble gases because they are so majestic that, in general, they don't react with anything. For this reason they are also known as inert gases

They are called noble gases because they are so majestic that, in general, they don't react with anything. For this reason they are also known as inert gases.

Explanation:

the product of the pressure and volume is also constant