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    Why in an ammonium ion, why does hydrogen lose the electron and therefore have a dative coordinate bond rather than nitrogen losing an electron and therefore there would be no dative bond?
    Also, when drawing dot and cross structures, how do you know which element is in the centre?
    Thanks
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    (Original post by Laraib Chaudhry)
    Why in an ammonium ion, why does hydrogen lose the electron and therefore have a dative coordinate bond rather than nitrogen losing an electron and therefore there would be no dative bond?
    Probably the first ionisation energy of hydrogen is much less than nitrogen hence its easier for hydrogen to lose electron. However, I am not sure. You should look it up on the web.
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    (Original post by Laraib Chaudhry)
    Also, when drawing dot and cross structures, how do you know which element is in the centre?
    Thanks
    Usually, the atom that makes the most bond is centralised for example in Ammonia, Nitrogen makes 3 bonds while each hydrogen makes 1 bond thus Nitrogen is centralised
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