Question

why X2 is the general formula of halogens​

Answer 1

Answer:

Halogens are diatomic (X2) because of their electronic configuration.

Explanation:

They can not form more than one bond because they lack only 1 electron in the valance shell, so only two atoms of halogens can combine with one another. In the valence shell of halogens they have 7 electrons (since they are from group 17) and they require only one electron for a stable completely filled octet, thus they share 1 electron with each other.

Answer 2

Explanation:

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