Elements 16-30 of the Periodic Table Helping students learn the chemical formula of elements 16 to 30 of the Periodic Table. Simple drag and drop exercise. Drag Chemical Symbols to their names Sulfur Chlorine Argon Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn