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3 April, 04:56

How does a negative ion differ from an uncharged atom of the same element?

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  1. 3 April, 07:46
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    When an atom or molecule accepts or looses an electron or electrons it gets either negative charge (when electrons gained) or a positive charge (when looses electron). The negative ion is called Anion and positve ion is called the Cation. An Ion can be Atomic or Polyatomic.

    Example:

    Sodium when looses one electron forms a cation i. e. Na⁺

    Chlorine when gains one electron forms an Anion i. e. Cl⁻

    Result:

    A negative ion (Anion) differ from an uncharged atom of the same element in the number of electrons. An anion contains more electrons than its corresponding Neutral Element.
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