Groups from 13 to 18 in the periodic table are called p-block elements

1.	Groups from 13 to 18 in the periodic table are called p-block elements. Give reason.
Answer» SOLUTION :(i) The elements whose last electron enters into the p-orbital of the outermost SHELL are having similar properties and thus form a GROUP. The .np orbital of these elements is being progressively filled. Hence, these elements are named as p-block elements. (ii) The groups of `13^(th)` to `18^(th)` in the periodic table BELONGS to p-block.

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