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* alkaline metals contain the higher melting and also the boiling points.

* These metals are present in the earths crust which does not have a basic form.

* Alkaline earth metals are distributed in structure which is named as rock.

* These metals have density which is low.

* Alkaline earth metals have low electron affinity and as wells as low electronegativity.

* One of the basic characteristic is, it contains two electrons in their outer shell.

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