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!
Chlorine | Cl (Element) - PubChem
Periodic Table element Summary Chlorine. Chlorine is a chemical element with symbol Cl and atomic number 17. Classified as a halogen, Chlorine is a gas at room temperature.
Xenon | Xe (Element) - PubChem
Periodic Table element Summary Xenon. Xenon is a chemical element with symbol Xe and atomic number 54. Classified as a noble gas, Xenon is a gas at room temperature.
Helium | He (Element) - PubChem
Periodic Table element Summary Helium. Helium is a chemical element with symbol He and atomic number 2. Classified as a noble gas, Helium is a gas at room temperature.
Atomic Mass | Periodic Table of Elements - PubChem
Explore how atomic mass changes with atomic number in the periodic table of elements via interactive plots.
Fluorine | F (Element) - PubChem
Periodic Table element Summary Fluorine. Fluorine is a chemical element with symbol F and atomic number 9. Classified as a halogen, Fluorine is a gas at room temperature.
Oxygen | O (Element) - PubChem
Periodic Table element Summary Oxygen. Oxygen is a chemical element with symbol O and atomic number 8. Classified as a nonmetal, Oxygen is a gas at room temperature.
Iridium | Ir (Element) - PubChem
Periodic Table element Summary Iridium. Iridium is a chemical element with symbol Ir and atomic number 77. Classified as a transition metal, Iridium is a solid at room temperature.
Potassium | K (Element) - PubChem
Periodic Table element Summary Potassium. Potassium is a chemical element with symbol K and atomic number 19. Classified as an alkali metal, Potassium is a solid at room temperature.
Silicon | Si (Element) - PubChem
Periodic Table element Summary Silicon. Silicon is a chemical element with symbol Si and atomic number 14. Classified as a metalloid, Silicon is a solid at room temperature.