The densities of alkaline earth metals are much smaller than those of alkali metals.

Assertion : The alkaline earth metal hydroxides are more basic than the corresponding alkali metal. Reason : The ionisation enthalpies of alkaline earth metals are much lower than those of alkali metals.

Why are the second ionisation energies of alkaline earth metals much smaller than those of alkali metals ?

The first ionization energies of alkaline earth metal are higher than those of the alkali metals. This is because:

The atomic radii of alkaline earth metals are smaller than those of the corresponding alkali metals. Explain, why?

(a) Why alkaline earth metals are harder, have higer melting ponts and higher densities than the alkali metals? (b). Why the atoms of alkaline earth metals are smaller than the corresponding alkali metals? (c ). Why alkaline earth metals have high electrical and thermal conductivities? (d). What is black ash? (e). Why the variation in physical properties of alkaline earth elements is not as regular as in the case of 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.

The first ionisation enthalpies of the alkline earth metals are higher than that of alkali metals but second ionisation ethalpies are smaller, why?

Alkaline earth metals show:-

Alkaline earth metals are _______ reducing agents than alkali metals.

The ionisation enthalpy of alkaline earth metals is