Which is more reactive in Francium or Potassium and why?

1.	Which is more reactive in Francium or Potassium and why?
Answer» But according to the modern periodic table when we come down in group 1 the reactivity increases and Fr is present at last so Fr should be more reactive but K is more reactive . Why? Potassium is more reactive because it is the first group of the member Potassium Francium is more reactive than Pottasium . Potassium

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