An atom of selenium (se) forms a monatomic ion. which of the following ions does is most likely form?
possible answer choices:
se^2+
se^6-
se^6+
se^2-

The correct answer is Se^2-

Explanation:

The elements of group VI-A areO, S, Se and Te.-2 is most likely form in groups VI-A elemenst like O^2- as well as S^2-. Similarly Se also have Se^2-.

Reason:

Actually these elements have 6 valence shell electrons and they want to get 2 more electrons in order to get nearest configuration of noble gases.

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