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19 October, 00:48

Which of these pairs of elements is most likely to be part of a polyatomic ion?

K and F

Li and I

Mg and Br

S and O

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Answers (2)
  1. 19 October, 01:49
    0
    S and O would be on a polyatomic ion as I know of
  2. 19 October, 02:09
    0
    Answer: Option (d) is the correct answer.

    Explanation:

    A polyatomic ion is defined as the ion formed by two or more number of atoms which actually covalently combine together.

    This means that only non-metals combine covalently together as a covalent bond is formed by sharing of electrons.

    For example, S and O atoms are covalent and they tend to form polyatomic ions when combine together.

    Whereas K and F, Li and I, Mg and Br are all metals and non-metals. So, they will always form an ionic bond as the metal will transfer its valence electrons to the non-metal.

    Thus, we can conclude that out of the given options S and O pairs of elements is most likely to be part of a polyatomic ion.
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