54 99
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54 99
The iupac has formally approved the element names and symbols for elements 113, 115, 117, and 118. Note that the discoveries of several high atomic weight elements have been recognized and the elements now have official names and symbols!
Get facts about the element phosphorus. Oct 17, 2019 · this spanish color printable periodic table of the elements includes the element name, atomic number, symbol, and atomic weight. Jun 16, 2016 · here's the first periodic table with 118 names and elements.
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