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Dichromate ion — Free Chemistry Illustration | GPAI | GPAI

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Dichromate ion

Dichromate ion

Chemistry

Dichromate ion

Dichromate ion, Cr2O7^2−, shown as two chromium-centered tetrahedra sharing one bridging oxygen atom. Two central chromium atoms, typically orange, are connected through a single red bridging oxygen; each chromium is also bonded to three terminal red oxygen atoms, giving seven oxygens total. Overall the ion has a bent, symmetric two-tetrahedra-sharing-one-corner shape, often enclosed in brackets or labeled with an overall 2− charge.

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