The naturally-occurring group 8 elements (helium, neon, argon, and kyrpton) are not completely inert, but they are more nearly so than any other group.
=NOBLE GASES=
The noble gases are the chemical family composed of elements that have full valence shells. These elements include helium, neon, argon, krypton, xenon, and radon. Due to their full valence shells, noble gases are known for their stability and lack of reactivity with other elements. This stability is attributed to the fact that their outermost energy levels are completely filled with electrons.
Astatine wouldn't form salt as readily as other elements in Group 17. Astatine is a radioactive metalloid. Other elements in Group 17 are nonmetals.
In Periodic table , Group 18 corresponds to Nobel gas group. They are six elements in this group. Helium , Neon , Argon , Krypton , Xenon , Radon constitute these group. They are chemically inert elements and having stable configuration.
Group 4 elements on the periodic table contain no period 2 elements whatsoever.
group 8, the noble gasses.
Both terms are acceptable due to the fact that eight electrons exist in the outermost shell of all elements in the group. Therefore, one could say that this group has 8 electrons in the outermost shell or that there are no electrons in the outermost shell - as the structure is stable! It is the perspective of a person.
group 7 - halogens group 8 - noble gases
Group 8 elements, also known as the noble gases, have 8 valence electrons. This is the maximum number of electrons that can occupy the outer shell of an atom, giving them stability and low reactivity.
Group 19 elements have 8 valence electrons (obey octet rule) and are hence stable.
The valency of first four main group elements is equal to their group numbers but elements from Group 5 to 8 have two valencies one equal to group number and second is obtained by subtracting group number from 8.
=NOBLE GASES=
There are 8 elements in the third period of periodic table. The elements belong to group-1,2,13,14,15,16,17 and 18
Halogens these are the salt forming elements which are highly reactive
Four of them.
Group 8A elements have 8 valence electrons. This means that the highest occupied energy level in Group 8A elements will have 8 electrons, as the maximum number of electrons in an energy level is 8 based on the octet rule.
In the Periodic table of Elements There are 118 Elements 96 are metals The rest are non-metals Group 7= Halogens Group 8/0= Noble gases Going down group 1 and 2, elements become more reactive