Problem: How do you predict the charges of ions formed by main-group elements?a) Main group metals tend to lose electrons, forming a cation with the same number of electrons as the nearest noble gas. A main group nonmetal tends to gain electrons, forming an anion with the same number of electrons as the nearest, previous noble gas. b) Main group metals tend to gain electrons, forming an anion with the same number of electrons as the nearest, previous noble gas. A main group nonmetal tends to lose electrons, forming a cation with the same number of electrons as the nearest noble gas

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Recall that for main group elements (Group A) it will either gain or lose electrons in the outermost orbital to achieve a noble gas configuration (same # of e- as the nearest noble gas).


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Problem Details

How do you predict the charges of ions formed by main-group elements?


a) Main group metals tend to lose electrons, forming a cation with the same number of electrons as the nearest noble gas. A main group nonmetal tends to gain electrons, forming an anion with the same number of electrons as the nearest, previous noble gas. 

b) Main group metals tend to gain electrons, forming an anion with the same number of electrons as the nearest, previous noble gas. A main group nonmetal tends to lose electrons, forming a cation with the same number of electrons as the nearest noble gas

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