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Charge on flourine?

by Murtuza Tipu
Tags: charge, flourine
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Murtuza Tipu
#1
Jul20-14, 01:10 PM
P: 35
Transition elements can form ions with different charges. Why can't elements other than transition elements form ions with different charges? If it is a Fluoride ion, why does it have to be an anion of charge -1? Why can't it have a -2 charge, or more?
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DrDu
#2
Jul21-14, 01:29 AM
Sci Advisor
P: 3,633
Quote Quote by Murtuza Tipu View Post
Why can't elements other than transition elements form ions with different charges?
Who said so? Most main group elements can have several oxidation states, e.g. tin forms both ##\mathrm{Sn^{2+}}## and ##\mathrm{Sn^{4+}}## ions. It is true that fluorine and oxygen mostly form ions with charge -1 and -2, respectively, however, even for oxygen, there are other possibilities, like the peroxide ion ##\mathrm{O_2^{2-}}## where each oxygen only bears one negative charge. Elements like sulfur come in a wealth of oxidation states ranging from -2 to +6.


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