anion vs. cation  [ENDORSED]

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Irma Ramos 2I
Posts: 51
Joined: Fri Sep 29, 2017 7:07 am

anion vs. cation

Postby Irma Ramos 2I » Fri Oct 27, 2017 10:34 pm

Other than the removing and addition of electrons, are there any other differences between anions and cations?

peytonruiz 1H
Posts: 20
Joined: Fri Sep 29, 2017 7:03 am
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Re: anion vs. cation

Postby peytonruiz 1H » Sat Oct 28, 2017 12:41 am

Hi Irma. There are really no other differences between a cation and an anion other than the ions' net charges (cations having an overall positive charge and anions having an overall negative charge).
Other than that, you can sometimes predict whether an atom will form a cation or an anion by looking at the period table. Alkali metals and alkaline earths always form cations. Most metals form cations. Halogens always form anions. Most other nonmetals typically form anions.
Hope this helps!

An Dang 3F
Posts: 20
Joined: Fri Sep 29, 2017 7:07 am

Re: anion vs. cation  [ENDORSED]

Postby An Dang 3F » Sat Oct 28, 2017 1:32 pm

Cation's atomic radius is usually smaller than an anion's atomic radius because the removal of an electron will cause the effective nuclear charge to become more prominent on the other electrons while the addition of an electron will cause an increase in valence electrons and have more repulsive forces between electrons.

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