Examine Figure 4.14, which shows the elements that form predictable ions. Use what you know about electron configurations to explain these trends.
Figure 4.14 Elements that form predictable ions
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The formation of ions takes place in order to attain the nearest inert gas electron arrangement so that an atom becomes stable. There are two types of ions, the positive charged ion is named as cation, and however the name given to negative ions is anion.