Inert Gases

Definition

Inert gases, also known as noble gases, are elements that are generally unreactive due to their full valence electron shells. They include helium, neon, argon, krypton, xenon and radon.

Related terms

Valence Electrons:

These are electrons located in an atom's outermost shell. They participate in bond formation with other atoms.

Ionization Energy:

The energy required to remove an electron from a gaseous atom or ion.

Octet Rule:

A rule stating that atoms tend to combine so that each atom has eight electrons in its outermost shell, thereby forming stable molecules.