Question

Give scientific reason for:
Alkali and alkaline earth metals are not available free in nature.

Answer 1

the alkali metals are the first group in the periodic table.

These earth metals are not found free in nature as they are unstable and can react very fast with other metals.

Except for the nobel gases, they react very well with the other metals. Thus they are not found free in nature.

Answer 2

$\rule{200}3$

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Alkaline earth metals have two valance electron which can be lost easily during a reaction. Hence, alkaline earth metals are not available free in nature

$\rule{200}3$