The most common oxidation state of an element is `-2`. The number of electrons present in the outermost shell is
The most common oxidation state of an element is `-2`. The number of electrons present in the outermost shell is
A. 2
B. 4
C. 6
D. 8
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Correct Answer - C
Since the common oxidation state of metal is -2. This indictaes it is 2 electrons short of noble gas configuration. Therefore, it has six electrons in valence shell.
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