Periodic table

  1H Hydrogen   HALOGENS`ALKALINE EARTH METALS ACTINIDES 2He Helium   3Li Lithium   4Be Beryllium   NOBLE GASES`TRANSITION METALS OTHERS 5B Boron   6C Carbon   7N Nitrogen   😯 Oxygen   9F Fluorine   10Ne Neon   11Na Sodium   12Mg Magnesium   ALKALI METALS`lANTHANIDES 13Al Aluminium   14Si Silicon   15P Phosphorus … Lire plus