← Periodic Table Trends 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 Effective Nuclear Charge Down Right Atomic Size Down Left Ionic Size Down Left Ionization Energy Up Right Electron Affinity Up Right Electron Negativity Up Right Metals Reactivity Down Left Nonmetals Reactivity Up Right