Ground state terms symbols of elements from Ne to Ar are Ne = 1S0 , Na = 2S1/2 , Mg = 1S0 , Al =2P1/2 , Si = 3P0 , P = 4S3/2 , S = 3P2 , Cl = 2P3/2 , Ar =1S0 , Solution Ground state terms symbols of elements from Ne to Ar are Ne = 1S0 , Na = 2S1/2 , Mg = 1S0 , Al =2P1/2 , Si = 3P0 , P = 4S3/2 , S = 3P2 , Cl = 2P3/2 , Ar =1S0 ,.