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    Anyone care to explain this question

    I understand the decay equations but not the whole concept behind the question.
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    (Original post by Super199)
    Anyone care to explain this question

    I understand the decay equations but not the whole concept behind the question.
    Talk about what is emitted in both decays and talk about the proton/nucleon numbers? Maybe about the speed of an alpha particle relative to an electron?
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    Beta decay is emission of either a beta minus particle or beta plus alongside a neutrino or antineutrino, while alpha decay only emits alpha particle
    Alpha decay forms new element with two fewer protons and two fewer neutrons; Beta decay forms new element with one more proton and one fewer neutron.

    I cant think of what could get you a third mark

    And in my opinion the point of the question is just to point out the differences between the 2 decays
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    (Original post by Super199)
    Anyone care to explain this question

    I understand the decay equations but not the whole concept behind the question.

    In alpha= Nucleon number decreases by 4, proton number decreases by 2, alpha decay occurs in heavy nuclei and perhaps you could say alpha radiation is more ionising

    In beta= Nucleon number doesnt change, proton number increases by 1, occurs in neutron rich nuclei and is less ionising. Beta also emits an anti electron neutrino unlike alpha decay

    I think these are the 3 comparisons it wants, have you got AQA paper 2 tomorrow?
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    (Original post by KNNY)
    Talk about what is emitted in both decays and talk about the proton/nucleon numbers? Maybe about the speed of an alpha particle relative to an electron?
    Alpha slower then electron?
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    (Original post by Super199)
    Alpha slower then electron?
    Correct
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    (Original post by Super199)
    Alpha slower then electron?
    (Original post by KNNY)
    Correct
    I doubt it. There is a distribution of kinetic energies for the beta particles in the beta decay. There is a chance whereby the beta particle is moving slower than the alpha particle.

    You may want to say that there is a distribution of kinetic energies of the beta particles but the observed kinetic energy for alpha particles are discrete, having only a few values.
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    (Original post by Eimmanuel)
    I doubt it. There is a distribution of kinetic energies for the beta particles in the beta decay. There is a chance whereby the beta particle is moving slower than the alpha particle.

    You may want to say that there is a distribution of kinetic energies of the beta particles but the observed kinetic energy for alpha particles are discrete, having only a few values.
    Oh my bad then, sorry
 
 
 
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