A monatomic ion (also called simple ionChapter 3: !Ions, Compounds, and Nomenclature
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ion An ion () is an atom or molecule with a net electrical charge. The charge of an electron is considered to be negative by convention and this charge is equal and opposite to the charge of a proton, which is considered to be positive by conven ...

consisting of exactly one atom. If an ion contains more than one atom, even if these are of the same element, it is called a

polyatomic ion A polyatomic ion, also known as a molecular ion, is a covalent bonded set of two or more atoms, or of a metal complex, that can be considered to behave as a single unit and that has a net charge that is not zero. The term molecule may or may n ...

. For example, calcium carbonate consists of the monatomic ion Ca²⁺ and the polyatomic ion . A type I binary ionic compound contains a

metal A metal (from Greek μέταλλον ''métallon'', "mine, quarry, metal") is a material that, when freshly prepared, polished, or fractured, shows a lustrous appearance, and conducts electricity and heat relatively well. Metals are typi ...

(

cation An ion () is an atom or molecule with a net electrical charge. The charge of an electron is considered to be negative by convention and this charge is equal and opposite to the charge of a proton, which is considered to be positive by conve ...

) that forms only one type of ion. A type II ionic compound contains a metal that forms more than one type of ion, i.e., ions with different

charges Charge or charged may refer to: Arts, entertainment, and media Films * '' Charge, Zero Emissions/Maximum Speed'', a 2011 documentary Music * ''Charge'' (David Ford album) * ''Charge'' (Machel Montano album) * ''Charge!!'', an album by The Aqu ...

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References

{{DEFAULTSORT:Monatomic Ion Ions

See also

References