Noble Gases

Basic information Noble gases.

Noble gases

Noble gases are in group 18 on the periodic table, and they are on the far right of the periodic table. There are six Noble gases.


Krypton is a chemical element with the atomic number 36 and symbol Kr. There is also little traces of Krypton in Mars's atmosphere.


Xenon has the atomic number 54 and symbol Xe. It is a chemical element and is in the Earth's atmosphere in small amounts. It has a color and an odor so you can tell when your near it.


Radon is radioactive and has the atomic number 86 and has the symbol Rn.