Rare Gases

Rare gases refer to gases corresponding to all 0-group elements on the periodic table of elements, also known as inert gases.They are colorless, tasteless, monoatomic gases at room temperature and pressure and are difficult to react with.There are 7 kinds of rare gases, they are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn, radioactivity) and (gas-Austria) (Og, radioactivity, artificial elements).