They all have a fully filled up outer valence electron shell: noble gases, mono atomic, inert.
(2 for Helium, 8 for all others; Neon, Argon, Krypton, Xenon, and Radon)
the same number of valence electrons
full octets
the same number of electrons needed to fill thier octet
The elements that make up Group 18 on the Periodic Table are caleed noble (or inert) gases.
Group 17 elements are called halogens, which include fluorine, chlorine, bromine, iodine, and astatine. Group 18 elements are called noble gases, which include helium, neon, argon, krypton, xenon, and radon.
The elements k and kr both belong to the same group on the periodic table, Group 18, which is the noble gases group. They are chemically inert and have a full outer electron shell, making them stable and unreactive.
Elements in the same group have more in common because they have the same number of valence electrons, leading to similar chemical properties. Elements in the same period have increasing atomic numbers and electron shells, but their properties can vary widely due to different numbers of electron shells and arrangements.
The elements in Group 18 are called the noble gases, also known as inert gases. These elements are known for their low reactivity due to their stable electron configuration.
The elements that make up Group 18 on the Periodic Table are caleed noble (or inert) gases.
all have 8 electrons in the valence shell
There is a total of 17 elements in those groups.
Group 18 is made up of noble gases.Common names are Helium,neon,argon,krypton,xenon and radon.They are most stable elements in the table.
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.
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-18 belongs to inert elements. The elements attain stability.
Noble gases (or group 18 elements)
Elements in group 18 do not often form bonds.
In the periodic table, the elements are grouped according to their properties. Elements in a group has an equal number of valence electrons. So the elements in a group have most common chemical properties.
group 18 is called noble gases