The group 6A elements possess the general outer-electron configuration ns2np4, where n has values ranging from 2 through 6. Thus, these elements may attain a noble-gas electron configuration by the addition of two electrons, which results in a -2 oxidation state.
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Answer:
The group 6A elements possess the general outer-electron configuration ns2np4, where n has values ranging from 2 through 6. Thus, these elements may attain a noble-gas electron configuration by the addition of two electrons, which results in a -2 oxidation state.