Why do the properties of an ion differ from those of its parents?
An ion is an atom that has a charge, positive or negative, due to the addition or subtraction of electrons. This means that the electron configuration of an ion is different than that of its parent atom. Remember that properties of elements are largely dependent on their electron configurations because it is the electrons that participate in chemical reactions and determine elements' reactivities. Therefore if the electron configuration of an atom changes, so do its…
The isoelectronic species are those elements, which have the same no. of electrons inside their atoms. Like an example is neon, and sodium ion, both of which consists of 10 electrons each. The elements, which are isoelectronic with each other, differ in their chemical and physical properties, like as the positive charge on a species increases, it's reactivity increases due to the increased electropositive nature of that species.
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