Assuming the elements in question are the elements in the Periodic Table of elements, those on the left are considered the noble gases. The periodic table is broken up into categories. They are metalloids, other nonmetals, halogens, noble gases.
The staircase in the periodic table represents the line between metals and nonmetals. Elements to the left of the staircase are typically metals, while those to the right are nonmetals. Elements that touch or are close to the staircase exhibit properties of both metals and nonmetals and are categorized as metalloids.
The general name given to the elements of Group IA (1) is alkali metals.
named elements that have not been given a permanent name yet
The Periodic Table.
Halogens
Another word for a moving staircase is 'escalator'?
=NOBLE GASES=
Alkali Metals
Noble gases.
Noble Gases..!
The two types of elements from left to right are metals and nonmetals . By:lhin velasco
The name given to group 7 elements in the Periodic Table are halogens.