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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, ... For elements with no stable isotopes, the mass number of the isotope with the ...


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 ...


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


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


Jul 30, 2009 ... Version History | DisclaimerR.A. Dragoset, A. Musgrove, C.W. Clark, and W.C. MartinNIST, Physical Measurement Laboratory A periodic table, ...