Explain why alkaline earth metals are harder than alkali metals ?

Explain why the alkaline earth metals are harder than alkali metals.

Explain why alkalinie earth metals are denser than alkali metals ?

Why are alkaline earth metals harder than alkali metals?

Assertion (A): Alkaline earth metals are harder than alkali meatals. Reason (R ): Atomic radii of alkaline earth metas are smaller thant the corresponding alkali metals in the same period.

Assertion (A): Alkaline earth metals are harder than alkali meatals. Reason (R ): Atomic radii of alkaline earth metas are smaller thant the corresponding alkali metals in the same period.

The alkaline earth metal harder than glass

Assertion : Alkaline earth metals are harder than alkali metals Reason : Atomic radii Qf alkaline earth metals are smaller than corresponding alkali metals in the same periods of periodic table