Why are alkali metals not found in nature?

State whether the following sentences are true or false: (a) Metals in the second group are called alkali metals. (b) Alkali metals are not found in free state in nature. (c) Baking soda is chemically sodium hydrogen carbonate. (d) Portland cement is basically silicates and alu minates of calcium.

The group 1 metals of the periodic table of elements are collectively called alkali metals. Alkali metals are never found free in nature. Give reason.

The weakest force found in nature

Why is Frenkel defect not found in alkali metal halides?

Why is Frenkel defect not found in alkali metal halides?

Why, alkali metals and the alkaline earth metals do not occur in free state?

Even crystals prepared with great care contains certain irregularities called crystal defects. Why is fenkel defects not found in alkali metal halides ?