An atom is normally electrically neutral because it has an equal number of positively charged protons and negatively charged electrons. If an electron is removed from an atom, the number of protons becomes greater than the number of electrons, producing a positively charged ion (cation). Similarly, gaining an electron produces a negatively charged ion (anion). Therefore, the removal or addition of a charged subatomic particle can convert a neutral atom into a charged ion.
The removal of a non-neutral subatomic particle converts the atom into a ______.
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