Periodic Table of Elements - PubChem Interactive periodic table with up-to-date element property data collected from authoritative sources Look up chemical element names, symbols, atomic masses and other properties, visualize trends, or even test your elements knowledge by playing a periodic table game!
PERIODIC TABLE OF ELEMENTS - PubChem PERIODIC TABLE OF ELEMENTS Electronegativity 17 Atomic Number Cl Symbol Chlorine Name 3 16 Electronegativity (Pauling Scale) 1 H Hydrogen 2 2 1 1 2 He Helium 18 3 Li Lithium 0 98 2 4 Be Beryllium 1 57 2 5 B Boron 2 04 13 6 C Carbon 2 55 14 7 N Nitrogen 3 04 15 8 O Oxygen 3 44 16 9 F Fluorine 3 98 17 10 Ne Neon 11 Na Sodium 0 93 3 12 Mg