Question

which metal is most reactive?​

Answer 1

Caesium, the most reactive metal in the periodic table, reacts extremely violently – hence why it can't be demonstrated in a classroom! This can be compared to other common metals, such as iron and copper, which produce no reaction when dropped into water.

Answer 2

Answer:

potassium

Explanation:

potassium is highly reactive due to its low ionization enthalpy.