Chemistry Practice Problems Periodic Table Practice Problems Solution: For each of the elements below, identify the charg...

Solution: For each of the elements below, identify the charge of its most common ion.Cl, Li, S, Al

Problem

For each of the elements below, identify the charge of its most common ion.

Cl, Li, S, Al

Solution

Recall that when becoming an ion, the element tries to achieve the configuration of the nearest noble gas (shaded purple).





For Cl: The nearest noble gas is Ar and we can see that I has 1 less electron than Ar. It needs to gain 1 electron to become Cl.


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