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Guilherme Mazui

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What is the Difference Between Monatomic and Polyatomic?

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The main difference between monatomic and polyatomic ions lies in the number of atoms they contain.

  • Monatomic ions are formed when a single atom gains or loses electrons, resulting in a net electric charge. Examples of monatomic ions include Na+, Cl-, and K+.
  • Polyatomic ions are composed of more than one atom and have an overall electric charge. These ions are formed when two or more atoms bond together and gain or lose electrons. Examples of polyatomic ions include sulfate (SO₄⁻²), nitrate (NO₃⁻), and carbonate (CO₃⁻²).

In summary:

  • Monatomic ions contain only one atom.
  • Polyatomic ions contain more than one atom.
On this page
  • What is the Difference Between Monatomic and Polyatomic?
  • Comparative Table: Monatomic vs Polyatomic

    • Comparative Table: Monatomic vs Polyatomic

    Here is a table comparing the differences between monatomic and polyatomic ions:

    Feature Monatomic Ions Polyatomic Ions
    Definition Monatomic ions are ions formed from a single atom, which has either lost or gained electrons, resulting in a net charge. Polyatomic ions are ions formed from two or more atoms covalently bonded together, with the group having an overall charge.
    Composition Consist of a single atom with a charge. Comprise two or more atoms with a charge.
    Formation Formed when a single atom loses or gains electrons. Formed when atoms share electrons through covalent bonds, resulting in the ion having an overall charge.
    Examples Na⁺ (sodium ion), Cl⁻ (chloride ion). NO₃⁻ (nitrate ion), SO₄²⁻ (sulfate ion).

    Monatomic ions are typically formed from single atoms and have a net charge due to the gain or loss of electrons. In contrast, polyatomic ions are formed from two or more atoms covalently bonded together and also carry an overall charge.

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    Guilherme Mazui

    Guilherme Mazui is graduated in journalism from the Federal University of Minas Gerais (UFMG) and a master's degree in Communication from the University of São Paulo (USP). In addition, he has experience in advertising writing and has worked as a content editor in several companies.