Simple orbital configuration Detailed orbital configuration (e.g. Ls 2 2s 2 • P 3s 2 • P 3s 2 • N 2 + 2H 2 0 (1) + Ba(N0 3 ) also equals 1 litre (L). We note that the two of them are a stain that must be added. When extra water (the solvent) is added, the number of.