← Periodic Table Export Options Alphabetize Word-Def Delimiter Tab Comma Custom Def-Word Delimiter New Line Semicolon Custom Data Copy and paste the text below. It is read-only. Select All Magnesium Mg 12 Aluminum Al 13 Silicon Si 14 Phosphorus P 15 Sulfur S 16 Chlorine Cl 17 Argon Ar 18 Potassium K 19 Calcium Ca 20 Scandium Sc 21 Chromium Cr 24