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                          1. Chemistry Nexus

                            by WebElements: the periodic table on the web

                            This item contains links to a “portable document format” (pdf) file that you can download, read, and print with the Adobe Acrobat Reader or Preview on whatever computer you use.

                            You can use this file to print copies of the periodic table for yourself, groups of students, whatever. What you may not do is sell it, or distribute it on media which you sell.

                            网络斗地主下载The 5-figure version is called periodic_table_webelements_2019_06_22.pdf. This version is appropriate for most uses, in particular for school use and many university requirements. It lists the atomic weights to 5 significant figures, all that is needed for many purposes.

                            This files was updated 21 June 2019 to include the latest IUPAC values.

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