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    (Original post by FrankB3)
    Nah mate, they meant between Leptons and Hadrons, as far as I could tell. I wrote the differences between both of them anyway. But I think they meant leptons and hadrons.
    1 thing how many similarities are between hadrons and leptons
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    (Original post by Ephixa)
    1 thing how many similarities are between hadrons and leptons
    I put that they were both matter and anti-matter and that leptons could decay into hadrons
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    (Original post by 123456789012)
    What did you get for the specific charge? I got 4.0x10^7 Ckg^-1.
    Specific charge-->

    (20X1.6X10^-19)/(20X1.673x10^-27)+(28X1.675x10^-27)=

    4.0X10^7 CKg-1

    Yep


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    (Original post by 123456789012)
    What did you get for the specific charge? I got 4.0x10^7 Ckg^-1.
    yes that definitely rings a bell - i think I wrote down 3.99 x 10^7 or something like that.
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    (Original post by jazzynutter)
    How many similarities between hadrons and leptons were we supposed to come up with?

    Posted from TSR Mobile
    I got one, I said that Hadrons and Leptons both interact via the EMF if the particles are charged.
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    the charge was 2+ so it's 2*1.6*10/19 over the mass
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    (Original post by Son234)
    Specific charge-->

    (20X1.6X10^-19)/(20X1.673x10^-27)+(28X1.675x10^-27)=

    4.0X10^7 CKg-1

    Yep


    This was posted from The Student Room's iPhone/iPad App
    I got to the power of 6, as I thought the charge was 2x1.6x10^-19 as there are two more protons than electrons?
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    (Original post by Maloneyyy)
    leptons could decay into hadrons
    I'd be very careful with that one...
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    (Original post by Son234)
    Specific charge-->

    (20X1.6X10^-19)/(20X1.673x10^-27)+(28X1.675x10^-27)=

    4.0X10^7 CKg-1

    Yep


    This was posted from The Student Room's iPhone/iPad App
    Would it not be (38X1.6X10^-19)/(48X1.67X10^-27) because it was the specific charge of the ion and not just the nucleus so the charge would be the protons and the electrons over the mass?
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    (Original post by samueliscool)
    I got to the power of 6, as I thought the charge was 2x1.6x10^-19 as there are two more protons than electrons?
    you are correct
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    (Original post by 123456789012)
    4.0x10^6
    I also got this, using charge as +2 not +20. But now I'm thinking about it, I forgot to add the masses of the electrons.
    Edit, just did a calculation including masses of electrons but I still got 4x10^6. I guess the masses of electrons is negligible.
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    similarities were that they both have antiparticles
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    (Original post by Notorious544d)
    I also got this, using charge as +2 not +20. But now I'm thinking about it, I forgot to add the masses of the electrons.
    mass of electrons is negligible, not once have I seen you have to include their masses.
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    For the prove that energy is conserved i used v^2/R and rounded values of R think I will lose a mark for that?


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    Anyone got an unofficial mark scheme?
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    (Original post by Notorious544d)
    I also got this, using charge as +2 not +20. But now I'm thinking about it, I forgot to add the masses of the electrons.
    I believe the masses of the electrons are so negligible that it doesn't influence the specific charge
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    (Original post by samueliscool)
    I got to the power of 6, as I thought the charge was 2x1.6x10^-19 as there are two more protons than electrons?
    As did I. Not entirely sure what the other poster means, but I did the sameas you. Charge was +3.2x10^6. We could, of course, be wrong..

    Electricity was killer though.. Probably dropped most of the marks available there

    Any idea if there will be a mark scheme up for this, similar to how they do it for maths?
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    (Original post by lebron_23)
    As did I. Not entirely sure what the other poster means but I did the same. Charge was +3.2x10^6. We could, of course, be wrong..
    you are correct. I've seen this in many past papers

    the mass of electrons is negligable, you never include it
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    (Original post by Maloneyyy)
    Would it not be (38X1.6X10^-19)/(48X1.67X10^-27) because it was the specific charge of the ion and not just the nucleus so the charge would be the protons and the electrons over the mass?
    Hmm I think your right it was the ion?!

    In that case it would be 38! Im not sure if it was the nucleus or the ion they asked for


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    (Original post by samueliscool)
    I believe the masses of the electrons are so negligible that it doesn't influence the specific charge
    Yeah both answers gave 4.0 x10^6 I worked out both to check


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