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1. en.wikipedia.org › wiki › TennessineTennessine - Wikipedia

   en.wikipedia.org › wiki › Tennessine

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   Hace 1 día · Tennessine is a synthetic chemical element; it has symbol Ts and atomic number 117. It has the second-highest atomic number and joint-highest atomic mass of all known elements and is the penultimate element of the 7th period of the periodic table. It is named after the U.S. state of Tennessee where key research institutions involved in its ...

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3. en.wikipedia.org › wiki › List_of_chemical_elementsList of chemical elements - Wikipedia

   en.wikipedia.org › wiki › List_of_chemical_elements

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   Hace 1 día · 118 chemical elements have been identified and named officially by IUPAC.A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z).. The definitive visualisation of all 118 elements is the periodic table of the elements, whose history along the principles of the periodic law was one ...