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 name given to group 7 elements in the Periodic Table are halogens.
named elements that have not been given a permanent name yet
The Periodic Table.
Halogens
Another word for a moving staircase is 'escalator'?
Group 7 elements are known as "halogens".
=NOBLE GASES=
Halogen
Noble gases.
Alkali Metals
Noble Gases..!
The two types of elements from left to right are metals and nonmetals . By:lhin velasco