Argon is indeed a stable element despite not having a technically full outer shell of electrons. Let's delve into the reasons behind its stability:
Argon belongs to the noble gas group (Group 18) in the periodic table, also known as the inert gases or noble gases. These elements, including helium, neon, argon, krypton, xenon, and radon, are characterized by their exceptional stability and low chemical reactivity. The stability of noble