An element with six valence electrons typically belongs to Group 16 of the periodic table (the chalcogens). To achieve a stable electron configuration, such elements usually gain two electrons. As a result, the ion formed by such an element will carry a charge of -2. For example, oxygen (O) and sulfur (S), both of which have six valence electrons, typically form O²⁻ and S²⁻ ions, respectively.
An element has six valence electrons. Which ionic charge will it's ion carry?
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