* What are noble gases? Noble gases are a group of elements found in Group 18 (VIIIa) of the periodic table. They are known for being very unreactive because they have a full outer shell of electrons.
* Common Noble Gases: The most common noble gases are Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), and Radon (Rn).
* Therefore: Any element that is *not* on that list of common noble gases is *not* a noble gas.
Examples of elements that are NOT noble gases:
* Hydrogen (H)
* Oxygen (O)
* Carbon (C)
* Sodium (Na)
* Chlorine (Cl)
* Iron (Fe)
* Gold (Au)
...and many, many more!
