Recall that when becoming an ion, the element tries to achieve the configuration of the nearest noble gas (shaded purple).
For each group in the periodic table, we have:
What is the charge of the common ion formed by each of these atoms? Either -2, -1, +1, or +2.
S, Br, I, Li, Sr, Mg, Na, Cs, Ba, F, and O
How are these changes found?
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