They are different atoms.
Xenon.
Neither argon nor xenonis a hexafluoride but xenon does form a hexafluoride.
Argon. "Period 3" means the third row of the periodic table. Noble gases are in "Group 18", the column on the far right.
If you mean which other element is used in a fluorescent light along with argon then the answer is xenon.
Noble gases - the rest are Helium, Neon, Argon, Krypton, Xenon, and RADON.
Xenon.
All have the outermost shell of electrons completely filled.
Neither argon nor xenonis a hexafluoride but xenon does form a hexafluoride.
helium, neon, argon, krypton, xenon and radon
argon and xenon are the rare gas
Xenon
Xenon is similar to other noble gases such as argon and krypton.
Yes, it is.
Yes.
Helium, Neon, Argon, Krypton, Xenon, and Radon.helium (studyisland answer)
Xenon
Xenon and argon are the elements used in fluorescent lights.