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14 May, 12:10

What is the difference between single, double, and triple covalent bonds? How many shared electrons are in each?

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Answers (2)
  1. 14 May, 12:30
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    The single covalent bond is represented by a single ' - ' and it has 2 shared electrons from the the bonding atoms.

    Double covalent bond is denoted with '=' and it has 4 shared electrons

    Triple covalent bond is denoted by ' _=' and it has 6 shared electrons

    Explanation:

    In single covalent bond each participating atom contributes one electron each to be equally shared between them in order to form a single covalent bond. Thus a single covalent bond is formed when atoms share 2 electrons together

    The double covalent bond is formed when each participating atom contributes two electrons each to be equally shared between them in order to form a double covalent bond. Thus a double covalent bond results from the sharing of 4 electrons together by two atoms. For example the formation of oxygen gas molecule

    In triple covalent bonds, 6 electrons are shared and each pair of electrons forms a bond which results in triple covalent bonds. Each atom contributes 3 electrons for equal sharing.
  2. 14 May, 14:02
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    Answer

    A * single covalent bond * is formed by sharing one pair of valence electrons. They are less reactive comparatviely and have a high bond length

    A * double covalent bond * is formed by sharing two pairs of valence electrons. They are moderately reactive and have moderate bond length.

    A * triple covalent bond * is formed by sharing three pairs of valence electrons. They are highly reactive and have a low bond length.
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