1s² 2s² 2p⁶ 3s² 3p⁶
Valence electrons are the electrons in the outermost energy level of an atom, which are involved in chemical bonding. In argon, the outermost energy level is the 3rd energy level. Therefore, the sublevels containing valence electrons are:
* 3s
* 3p
Important Note: Argon is a noble gas, meaning it has a full outer shell of electrons. This makes it very unreactive and unlikely to form chemical bonds.
