Question

Why alkali metals are more reactive than alkaline earth metals?

Answer 1

It takes more energy to remove two valence electrons from an atom than one valence electron. This makes alkaline Earth metals with their two valence electrons less reactive than alkali metals with their one valence electron

Answer 2

Because alkali metal has 1 electrons in valence shell so it can easily loss or gain electrons to be get stable in nature...

. while alkaline earth metals have 2 electrons in valence shell so it can not gain or loss electrons so easily as compare to alkali metal....

That why these more reactive. ....