Question

why do you think the noble gases are placed in a separate group.

Answer 1

Nobel gases are chemically inert and are present in extremely low concentration in atmosphere. Thus owing to their similar inert behaviour and similar electronic configuration, they are placed in a separate group.

Answer 2

HELLO FRIEND THIS IS YOUR ANSWER :-

Noble gases like He, Ne, Kr, Xe and Rn are placed in a separate group because of the following reasons:


- They are extremely unreactive.

- They donot combine with any other element of the periodic table.

- All the noble gas elements have zero valency and placed in zero group with similar chemical properties.



Hope this will be the satisfying answer for you .......!!!!!! ^_^