သ္ၚိအင်ကာလ

Group 1 2   3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Hydrogen &alkali metals Alkaline earth metals Pnictogens Chalcogens Halogens Noblegases  Period
1   2         3         4                   5                   6                    7