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    When a lone pair is involved in a dative covalent/ coordinate bond with another atom is it then considered as a bonding pair (when considering the shape of the moelcule?)
    For example I thought the F-B-F angle in H3NBF3 would be 107 (trigonal) because there are 3 bonding pairs around the central B atom, and one lone pair, however it is 109.5, implying a tetrahedral shape and that the central atom has 4 bonding pairs around it.

    I hope that makes sense!
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    H3NBF3? Which is the central atom?
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    (Original post by annaj97)
    When a lone pair is involved in a dative covalent/ coordinate bond with another atom is it then considered as a bonding pair (when considering the shape of the moelcule?)
    For example I thought the F-B-F angle in H3NBF3 would be 107 (trigonal) because there are 3 bonding pairs around the central B atom, and one lone pair, however it is 109.5, implying a tetrahedral shape and that the central atom has 4 bonding pairs around it.

    I hope that makes sense!
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    (Original post by annaj97)
    When a lone pair is involved in a dative covalent/ coordinate bond with another atom is it then considered as a bonding pair (when considering the shape of the moelcule?)
    For example I thought the F-B-F angle in H3NBF3 would be 107 (trigonal) because there are 3 bonding pairs around the central B atom, and one lone pair, however it is 109.5, implying a tetrahedral shape and that the central atom has 4 bonding pairs around it.

    I hope that makes sense!
    The basic shape (before VSEPR distortions) adopted by the electron domains around any atom is only dependent on the number of domains.

    Four domains = tetrahedral
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    [QUOTE=zetamcfc;65193151]
    Thank you!!
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    (Original post by charco)
    The basic shape (before VSEPR distortions) adopted by the electron domains around any atom is only dependent on the number of domains.

    Four domains = tetrahedral
    Thank you!!
 
 
 
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