Representative components and normal elements are terms used to describe the elements of s- and p-blocks.
The p-block elements are found on the right side of the periodic table.
They also include the families of boron, mercury, nitrogen, oxygen, and fluorine, in addition to noble gasses.
Noble gasses have entire p-orbitals and are non-reactive.
Final answer:
Hence, the normal elements are those in the periodic table that belong to the s- and p-blocks.