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- 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 - PubChem
As we mark the 150th anniversary of the periodic table, the scientific community has declared 2019 to be “The International Year of the Periodic Table” PubChem is celebrating by launching the PubChem Periodic Table and corresponding Element pages
- PERIODIC TABLE OF ELEMENTS - PubChem
PERIODIC TABLE OF ELEMENTS Electron Configuration 17 Atomic Number Cl Symbol Chlorine Name [Ne]3s 2 3p 5 Electron Configuration 1 H Hydrogen 1s 1 1 1 2 He Helium 1s 18 2 3 Li Lithium [He]2s 1 2 4 Be Beryllium [He]2s 2 2 5 B Boron [He]2s 2p 13 6 C Carbon [He]2s 2p 14 2 7 N Nitrogen [He]2s 2p 15 3 8 O Oxygen [He]2s 2p 16 2 4 9 F Fluorine [He]2s
- PERIODIC TABLE OF ELEMENTS - PubChem
PERIODIC TABLE OF ELEMENTS Chemical Group Block 17 Atomic Number Cl Symbol Chlorine Name Halogen Chemical Group Block 1 H Hydrogen Nonmetal 1 1 2 He Helium Noble Gas 18 3 Li Lithium Alkali Metal 2 4 Be Beryllium Alkaline Earth M … 2 5 B Boron Metalloid 13 6 C Carbon Nonmetal 14 7 N Nitrogen Nonmetal 15 8 O Oxygen Nonmetal 16 9 F Fluorine
- Atomic Mass | Periodic Table of Elements - PubChem
Periodic Table Atomic Mass in the Periodic Table of Elements Cite Download Relative atomic mass is the ratio of the average mass of the atom to the unified atomic mass unit (symbol: u) or dalton (symbol: Da), which is defined as one twelfth of the mass of a carbon-12 atom in its ground state
- PubChem
PubChem is the world's largest collection of freely accessible chemical information Search chemicals by name, molecular formula, structure, and other identifiers Find chemical and physical properties, biological activities, safety and toxicity information, patents, literature citations and more
- Atomic Radius | Periodic Table of Elements - PubChem
Atomic Radius in the Periodic Table of Elements Cite Download The atomic radius of a chemical element is a measure of the size of its atom, usually, the distance from the center of the nucleus to the outermost isolated electron Because an atom does not have a discrete boundary, there are various non-equivalent definitions of atomic radius
- Aluminum | Al (Element) - PubChem
Chemical element, Aluminum, information from authoritative sources Look up properties, history, uses, and more
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