Ions arrangment

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Ions arrangment

Postby George_Zhu » Mon Jul 29, 2019 9:21 pm

why the arrangement of the size of ions are oppositely with the arrangement of size of atoms?

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Re: Ions arrangment

Postby Chem_Mod » Mon Jul 29, 2019 11:15 pm

The order should be the same for species in the same row that tend to gain electrons: as you move to the right, the ion becomes smaller because of the increase in number of protons. However, if you are referring to species that lose electrons to form cations, this is because they lose all the electrons from their outermost shell to obtain a full outer shell and become isoelectronic to the noble gas in the row above, making them much smaller than their neutral species.

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