question_answer

The group of noble gas elements is called zero group. Why?

Answer:

                With the exception of helium \[(1{{s}^{2}}),\] all other noble gas elements have \[n{{s}^{2}}{{p}^{6}}\] electronic configuration. Thus, they have highly symmetrical configuration and therefore, do not form compounds under ordinary conditions. In other words they show zero valency and are included in the zero group of the periodic table.