Question

Arrange the elements in the increasing order of reactivity
Hydrogen, copper, potassium,gold,silver,calcium

Answer 1

Answer:

gold, silver, copper, hydrogen, calcium and potassium where potassium is the most reactive one

Answer 2

Answer:

Potassium

Calcium

Hydrogen

Copper

Gold

Silver

Explanation:

In order of decreasing reactivity the metals potassium, sodium, lithium, calcium, magnisium, zinc, iron, and copper can be put in order of their reactivity from their reactions with water and dilute acids