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    Usama El-Ayaan

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    [He] 2s2 2p4

    [Ne] 3s2 3p4

    [Ar] 3d10 4s2 4p4

    [Kr] 4d10 5s2 5p4

    [Xe] 4f14 5d10 6s2 6p4Usama El-Ayaan

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    .

    .

    -M2+M2-

    .

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    ..

    ..

    :

    ()......

    ().

    ().

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    :

    .

    .Usama El-Ayaan

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    SO2,

    SeO2, TeO2, PoO2..

    .

    SO2 + H2O H2SO3

    (SO32-)

    (HSO3-).

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    SO2:O2

    2SO2 + O2 2SO3

    SO2

    .SO2.

    SO2SO3H2SO4.

    ()-

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    .

    H2SO496%(18 M).Exothermic

    H2SO4 (conc.) + H2O H3O+ + HSO4

    -

    H2SO4

    .

    .

    C12H22O11.

    OH11C12OHC2

    SOH.conc

    112212

    42

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    http://060_dehydratsugar.mov/http://060_dehydratsugar.mov/http://060_dehydratsugar.mov/http://060_dehydratsugar.mov/http://060_dehydratsugar.mov/
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    .

    H2SO4

    .+6+4.

    3H2SO4 +2NaBr Br2+SO2+ 2H2O+ HSO4

    -

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    Usama El-Ayaan

    http://081_sulfuricacidox.mov/
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    Usama El-Ayaan