Question

Why has the zero group been placed at the extreme right of the periodic table?

Answer 1

Answer:

Explanation:it is because the zero groups are noble gas

Answer 2

noble gases have fully filled last subshell .and they are least reactive elements,so they are discovered later than alkali metals etc ,so they are placed at the extreme right of the periodic table because they have stable electronic configuration and their configuration lies in between alkali metals and halogen family .

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