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Ionization of elements

Posted: Sun Oct 28, 2018 2:33 pm
by mbaker4E
Why do certain elements tend to have certain ions like Cu ---> Cu+ and Cu2+? but not Cu3+?

Re: Ionization of elements

Posted: Sun Oct 28, 2018 2:59 pm
by 005115864
This is due to fact that elements have the tendency to look for more stable states. Therefore, to have a stable ground state, elements tend to follow the Pauli exclusion principle and Hund's rule. If these rules are not followed, then it is in an excited state.

Re: Ionization of elements

Posted: Sun Oct 28, 2018 10:13 pm
by 404536963
This is because that each element is different in the number of electrons it wants to take/give away when bonding. So for Cu, it has 2 valence electrons, so it would want to give up those 2 to make it stable, but not more than is in its valence ring. It also might want to take electrons to make it stable, but since it would need a large number, it is more unlikely.

Re: Ionization of elements

Posted: Sun Oct 28, 2018 10:42 pm
by Diviya Khullar 1G
Elements want to achieve an electron configuration that is like the closest inert gas, because this is the most stable form for the atom to be in. So, they will lose or gain just enough electrons so that they can have a full outer shell or electrons. In the case of copper, it has 2 valence electrons and according to the octet rule, it needs an outer shell with 8 electrons. So, it will just give away those 2 electrons, resulting in the cation Cu^(2+)