There are no 'rows' on the Periodic Table of the Elements.
I assume you are talking about Group-18 of the table.
Group-18 of the Periodic Table of the Elements are the noble gases. These elements have a full valence shell (8 electrons).
Those are the noble gases.
Noble gases
group 18, the right most group on the periodic table
The Iron Family
Noble gases are in group 8A; the last column in the periodic table.
Argon (Ar, element number 18) is the last element in the third period of the periodic table.
The valency is 3+
group 18, the right most group on the periodic table
The Iron Family
Noble gases are in group 8A; the last column in the periodic table.
Noble gases: helium, neon, argon, krypton, xenon, radon, ununoctium.
Argon (Ar, element number 18) is the last element in the third period of the periodic table.
The valency is 3+
3p6
right side, last group (or last column). Noble gases are group 18 elements.
There are 114 elements in the periodic table, not just 2.
The noble gases, column 18 or VIII of a periodic table, are the least reactive. However, in the last few decades, compounds of at least the heavier members of this group have in fact been made. Therefore, there is no longer any entire group on the periodic table that is totally unreactive chemically.
The so-called noble or inert gases are in Group 18, the last group on the right of the periodic table of the elements.
Each group/family on the periodic table can determine valence electrons by the last number of the group/family number, like helium. It's a noble gas that has 8 valence electrons because it's on the 18 family/group