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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 Interactive periodic table of the chemical elements; Properties, history, name origin, facts, applications, isotopes, electronic configuation, crystal structure, hazards and more
Periodic Table – Royal Society of Chemistry Interactive periodic table with element scarcity (SRI), discovery dates, melting and boiling points, group, block and period information
Periodic Table バークリウムカリフォルニウムアインスタイニウム (100) Fm (101) Md Fermium Mendelevium
PERIODIC TABLE OF THE ELEMENTS Table 4 1 Revised March 2024 by D E Groom (LBNL) The atomic number (top left) is the number of protons in the nucleus The atomic masses (bottom) of stable elements are weighted by isotopic abundances in the Earth’s surface Atomic masses are relative to the mass of 12C, defined to be exactly 12 unified atomic mass units (u) The exceptions are Th, Pa, and U, which have no stable isotopes
元素の周期表 - ChemicalAid The periodic table provides an extremely useful framework to classify, systematize and compare all the many different forms of chemical behavior The table has also found wide application in physics, biology, engineering, and industry