Who decides the elements that are on the periodic table?

Question: Who decides the elements that are on the periodic table?
- Keywords:
  element,
  periodic table
Asked by lyd_ahmed to Amy, Helen, Nicolas, Daniel, Thorrun on 20 Jun 2017.
- Nicolas Labrosse answered on 20 Jun 2017:
  
  It’s a very good question! That’s the International Union of Pure and Applied Chemistry: https://iupac.org/what-we-do/periodic-table-of-elements/

Question: Who decides the elements that are on the periodic table?