Question

write the name of metal which is placed at the top of reactivity series and why​

Answer 1

Potassium,it is placed in top of reactivity series because it reacts violently with liquids

Answer 2

Explanation:

At the Top of the series, most reactive metals are present. At the bottom of the series, least reactive metals are present. The reactivity series is obtained by performing displacement reactions between various metals and their salt solutions. Sodium, potassium, magnesium and aluminium are more reactive than hydrogen