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The Periodic Table of Elements
Dmitri Mendeleev generally is credited with the creation of the first periodic table, which charts the chemical elements by atomic number and valence shell electron configuration.
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The two variants originate from historical difficulties in placing the lanthanides in the periodic table, ...


Interactive periodic table with dynamic layouts showing names, electrons, oxidation, trend visualization, orbitals, isotopes, and ... Periodic Table of Elements.


The Chemistry Division's Periodic Table describes the history, properties, resources, uses, isotopes, forms, costs, and other information for each element.


The interactive periodic table of elements - chemical data, health and environmental effects presented in five languages.


The Periodic Table of Elements. Table of Elements. Download a printable version of the Periodic Table of Elements in PDF format: Color versions: Basic / ...


Chemical elements listed by atomic number. The elements of the periodic table sorted by atomic number. click on any element's name for further chemical ...


In this educational animated movie about Science learn about atoms, protons, neutrons, electrons, atomics, nonmetals, semimetals, and alkali.


Award winning periodic table with user-friendly element data and facts. Cool online chemistry videos, dictionary, tools, etc.


periodic table of the elements: in chemistry, the organized array of all the chemical elements in order of increasing atomic number—i.e., the total number of  ...