Periodic table



  • What is the order of solubility of gr2 oxides(be0,mg0.....ba0)
    Also give the explanation .



  • @siddhartha-ghosh

    Since water is polar, the more polar molecule will have higher solubility. Polarity is determined by the difference in electronegativity between two atoms.
    for example,
    Since Mg and Ba's electronegativity is 1.2 and 0.9 respectively, and O's electronegativity is 3.5, the difference between O and Ba is larger than that between O and Mg. Therefore BaO is more soluble than MgO.
    as you move down group electronegativity of metal will decrease, hence difference will increase so will polarity so will will solubilty.



  • @siddhartha-ghosh

    Since polar molecules dissolve polar
    molecules, and water is polar, the more polar
    molecule will have a higher solubility.
    Polarity is determined by the electronegativity
    of elements in a compound. A higher
    electronegativity essentially means that the
    molecule holds its electrons closer to its
    nucleus. And when 2 elements in a molecule
    have different electro negativity's, it causes one
    of the elements to hold the electrons more
    closely to their nucleus. This causes the
    element with the higher electronegativity to
    have a slightly negative charge, and the
    element with the lower electro negativity to
    have a slightly positive side. This is called a
    Dipole-Dipole and it causes compounds to be polar


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