Use the checklist to write a 4-page research paper about the topic, on whether or not the periodic table needs to be updated or not.

Trouble in the periodic table | Feature | RSC Education
https://www.scientificamerican.com/article/the-evolution-of-the-periodic-system/
https://cen.acs.org/physical-chemistry/periodic-table/periodic-table-icon-chemists-still/97/i1
https://www.sciencenews.org/article/periodic-table-history-chemical-elements-150-anniversary
https://www.nytimes.com/2019/08/27/science/periodic-table-elements-chemistry.html

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