Polyatomic Ions

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Nicoline Breytenbach 3D
Posts: 46
Joined: Fri Sep 28, 2018 12:26 am
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Polyatomic Ions

Postby Nicoline Breytenbach 3D » Thu Oct 04, 2018 12:04 pm

Should we have all the common polyatomic ions memorized? Or will we be given that information when needed? If we do need it memorized, does anyone have any tricks to remember them more easily?

Brian Cook
Posts: 34
Joined: Fri Sep 28, 2018 12:15 am

Re: Polyatomic Ions

Postby Brian Cook » Thu Oct 04, 2018 12:24 pm

I think over time we will get use to the most common polyatomic ions. Also if you consider the polyatomic ions that end in -ate as your main ones, different prefixes and suffixes will tell you the different number of oxygen atoms. Per___ate (1 more oxygen) , __ate (most common form), ___ite (1 less oxygen) , hypo___(2 less oxygen). For example, Iodate has 3 oxygen whereas Iodite only has 2. Hope this helps :)

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