Group 18 elements obey octet rule. They have 8 valence electrons (except for helium, which has 2 valence electrons) and are stable. Thus they are chemically inert under normal conditions.
There is a total of 17 elements in those groups.
The noble gases are found in Group 18 of the periodic table. These elements are known for their stability and reluctance to form chemical bonds with other elements due to their full outer electron shells.
Group 17 elements are called the halogens. Group 18 elements are called the noble gases.
Group 17 elements are called the halogens. Group 18 elements are called the noble gases.
Group-18 belongs to inert elements. The elements attain stability.
Noble gases (or group 18 elements)
The chemical elements in a group have similar properties.
The Inert Gases in Group 18 (0) (exc. Radon) are highly unreactive. They react with almost no other elements in the Periodic Table. Radon is however radioactive.
Elements in group 18 do not often form bonds.
The elements that make up Group 18 on the Periodic Table are caleed noble (or inert) gases.
group 18 is called noble gases
Group 18, in the Periodic Table, is called the noble gases.