What is the electronic structure of selenium? What salt would it form with chromium metal?

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What is the electronic structure of selenium? What salt would it form with chromium metal?

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Answer 1 · 2017-09-03T05:22:26

Well selenium is a chalcogen; it shares the same group, and same electronic structure as oxygen or sulfur.

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And thus if we got $C r (V I +)$ $Cr(VI+)$ , we would have $C r S e_{3}$ $CrSe_3$ , just as we have $C r O_{3}$ $CrO_3$ or $C r S_{3}$ $CrS_3$ ...in that oxygen, sulfur, and selenium commonly form $E^{2 -}$ $E^(2-)$ ions........

While $C r O_{3}$ $CrO_3$ is certainly known, $chromic selenide$ $"chromic selenide"$ might be rare or unknown. The Cr(II) salt, CrSe, is certainly known........

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What is the electronic structure of selenium? What salt would it form with chromium metal?

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