Question

Arrange these metals in order of increasing reactivity
K, Pb, Ca, zn.

Answer 1

Answer:

K>Ca>Pb>Zn

Explanation:

As K is an alkali metal it is highly reactive as it has 1valencey ie it needs only single e- to become stable

After that Ca is an alkaline earth metal it also reactive as it needs 2e- to complete configuration

Pb is a non metal

While Zn is a transition metal with stable e- congratulation hence less reactive