what is the highest reaction in the periodic table

Question: what is the highest reaction in the periodic table
- Keywords:
  chemistry,
  periodic table,
  reaction
Asked by anon-186551 to Verity on 14 Nov 2018.
- Verity Hill answered on 14 Nov 2018: last edited 14 Nov 2018 1:56 pm
  
  Fluorine is the most reactive non-metal, and Caesium is the most reactive metal. Working with either can often lead to explosions!

Question: what is the highest reaction in the periodic table