What is an element with similar properties as argon and xenon?

my homework is due tomorrow and i have TWO questions left.!

please help me out and thnx in advance.



:Argon and xenon are gases. They do not combine easily with other elements. Identify another element with similar properties and explain your answer.



u don't have 2 explain but it would be nice.What is an element with similar properties as argon and xenon?
Ar and Xe are both in column 18 on the periodic table. Elements in a column behave similarly.

So He, Ne, Rn and Kr would all be options. Rn less so than the others since it's radioactive.

Since Kr is between Ar and Xe it would be most similar.What is an element with similar properties as argon and xenon?
argon and xenon are noble gases (8th period) they are relatively inert as they have full outer electron shells. Other 8th period gases are Helium, Neon, Krypton, and Radon. Radon is unstable and decays spontanously so I would choose one of the other three.