How is an ion different from its parent atom?
Atoms depend on the number and configuration of its electrons, therefore they (atoms & ions) have different chemical properties.
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…
A neutral atom has an equal amount of protons and electrons. An ion is a charged atom. The amount of protons of a specific element will never change, but the number of electrons changes when an ion is formed. Therefore, a neutral atom and an ion are similar because they have the same number of protons, but they are different because they have a different number of electrons.
An ion is an atom that has a different number of electrons than normal. That makes it positively or negatively charged. Normally, atoms have the same number of electrons as they have protons. If the atom has lost one of more electrons, it will be a positive ion. If it has gained one or more electrons, it will be a negative ion.