-Group 18 elements are called Noble Gases.

-The elements in this group are:

-Helium

-Neon

-Argon

-Krypton

-Xenon

-Radon

-They are gasses under Standard Conditions.

-Have a full outer shell of electrons

-They are colorless and odor less

-Their melting points are close together giving them a very narrow liquid range.