Question

why are noble gaes placed in separate group?​

Answer 1

Explanation:

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.

Answer 2

Answer:

1. they are extremly unreactive
2. they donot combine with another element of periodic table

Explanation:

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