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Saturn Ion
Elements and Compounds

What are ions?


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October 17, 2015 5:43AM

Ions are electrically charged particles. They form when an atom contains an unequal number of protons in the nucleus and electrons in the electron cloud. Of course, there should be neutrons in the nucleus too but that makes no difference since neutrons are neither -1e or +1e but are electrically neutral.Since protons are positively charged and electrons are negatively charged, if there are more electrons than protons, the atom or molecule will be negatively charged. This is called an anion.Conversely, if there are more protons than electrons, the atom or molecule will be positively charged. This is called a cation. GOOD LUCK.