The most common ionic charge associated with elements in the chalcogen group (Group 16 of the periodic table) is -2. The chalcogens include oxygen (O), sulfur (S), selenium (Se), tellurium (Te), and polonium (Po). When these elements form ions, they typically gain two electrons to achieve a full outer electron shell, resulting in a -2 charge. For example, oxide (O²⁻), sulfide (S²⁻), and selenide (Se²⁻) are common ions formed by chalcogens.
What is the most common ionic charge associated with elements in the chalcogen group?
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