# What do all of the noble gases have?

May 18, 2017

#### Explanation:

I'm guessing you mean "what do all the noble gases have in common" right? In that case that's simple!

Noble gases are the elements that belong respectively to group $18$. What do they all have in common? Well, since they are the very last group on the periodic table, they have full outer shells of valence electrons.

This means that on the periodic table, these are the most stable elements because the elements can only hold a certain amount of valence electrons in the outermost shell ($8$ valence electrons).

See below:

As stated above, the only noble gases are:

• Helium

• Neon

• Argon

• Krypton

• Xenon