what is an ion?



  1. 0 Votes

    I assume you mean what is an ion.  An ion is a charged particle, it can have a positive or negative charge.  An ion can be an atom or a molecule.  Normal table salt will break up into ions (Na+ and Cl-) when dissolved in water.  If you are taking a chemistry or other science course, you should be able to find much more detail in your text book.

  2. 0 Votes

    It is an atom or molecule in which the total number of electrons is not equal to the total number of protons. This unequal number gives it a net positive or negative electrical charge. An ion consisting of a single atom is a monatomic ion and an ion containing two or more atoms is a polyatomic ion. They are essential to life, playing important roles in the cells of living organisms, especially in cell membranes. 

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