Question

What is the electron configuration of argon?

Answer 1

Argon:

• Argon is a p-block element having the atomic number $18$ and an atomic symbol $\mathrm{Ar}$.
• It belongs to Group-$18$ and is a noble gas.

Electronic configuration: The arrangement of electrons into the orbitals of an atom using some fundamental principle is called its electronic configuration.

Electronic configuration of Argon:

• The electronic configuration of Argon is $1{\mathrm{s}}^{2}2{\mathrm{s}}^{2}2{\mathrm{p}}^{6}3{\mathrm{s}}^{2}3{\mathrm{p}}^6$.
• Argon has fully filled atomic orbital. Due to fully filled electronic configuration Argon is least reactive.