How Does an Atom Become an Ion?

Answer

An atom normally has the same number of positive and negative particles and has a neutral charge. An atom becomes and ion when there are either extra or missing electrons.
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Q&A Related to "How Does an Atom Become an Ion?"
By gaining or losing an electron. A good rule of thumb is that metals lose electrons to become positively charged cations, and non metals gain electrons to become negatively charged
http://wiki.answers.com/Q/How_an_atom_becom_a_ion
When a particle - an electron or existing ion - crashes into an atom, it can remove an electron from the atom. That's the process of impact ionization. It's very likely you're doing
http://www.ehow.com/info_8665087_atom-become-posit...
Atoms contain the same number of protons as electrons; an ion is an electrically charged
http://www.chacha.com/question/why-do-atoms-become...
An atom becomes an ion when it undergoes or enters into a redox reaction in which it gains or loses an electron.
http://answers.yahoo.com/question/index?qid=201008...
1 Additional Answer
The simple answer is by gaining or losing electrons. When the protons and electrons are equal you have the atom. When they are altered and lose the balance they become ions.
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