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A monatomic ion (also called simple ion[1][2]) is an ion consisting of exactly one atom. If, instead of being monatomic, an ion contains more than one atom, even if these are of the same element, it is called a polyatomic ion.[3] For example, calcium carbonate consists of the monatomic cation Ca2+ and the polyatomic anion CO2−
3; both pentazenium (N+5) and azide (N−3) are polyatomic as well.

References

  1. ^ admin (2018-01-10). "List of Polyatomic Ions and Charges - Freakgenie". Retrieved 2022-04-13.
  2. ^ Chapter 3: !Ions, Compounds, and Nomenclature
  3. ^ William Masterton; Cecile Hurley (24 January 2008). Chemistry: Principles and Reactions. Cengage Learning. p. 176. ISBN 978-0-495-12671-3.
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