Answer :
The electron configuration
1s^2 2s^2 2p^6 3s^2 3p^6 represent the noble gas - Argon. Since Argon possess 18 electrons in total.
1s^2 2s^2 2p^6 3s^2 3p^6 represent the noble gas - Argon. Since Argon possess 18 electrons in total.