Group 18 or Noble gases.
There is no such thing as Group 0 in the periodic table.
Noble gases.
Origin.
Depending on the type of group of words it is depends on the other name. It can be a category, lists, or group.
The unknown! :0
Matarriki
You could call a group of boys a gang
In other way Character array is called strings.A group of characters can stored in a character array. e.g. char name[] ={'S','A','T','Y','A','\0'};
Noble Gases
The elements in Group 0 - Inert Gases group are all highly unreactive and so don't combine with other elements.
It might be the name a particular AA group or other rehab group has picked for itself. Sometimes groups name themselves
Galapagos