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    It isn't given to you in the data at the back of the paper - is it just the opposite of an electron i.e. 1.6X10^19 C??
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    1.602*10^(-19)
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    (Original post by mabs)
    1.602*10^(-19)
    Oh yeah, missed that. when you multiply or divide by -1, never touch the index number... you'd need (1.602*10^19)/(1.602*10^-19) electrons to cancel out one proton otherwise... not a very stable atomic model.
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    (Original post by mabs)
    1.602*10^(-19)
    (Original post by mik1a)
    Oh yeah, missed that. when you multiply or divide by -1, never touch the index number... you'd need (1.602*10^19)/(1.602*10^-19) electrons to cancel out one proton otherwise... not a very stable atomic model.
    I'm confused. Is it 1.6X10^+19 or 1.6X10-19??
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    charge on an electron = -1.6 * 10^-19
    charge on proton = +1.6 * 10^-19

    in other words the same magnitude as the charge on an electron just positive instead of negative. hope this clarifys.
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    The charge is quite simply +1. Never mind all that mumbo jumbo above. Keep it simple.
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    They're physicists vinny, us chemists have no place here
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    quite, that wont get you any marks on a physics paper, lol
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    electroc charge is measured in units called Coulombs. Hence the amount of charge on a proton is 1.6E-19 Coulombs.
    To say the chagre is +1 is incorrect. What you can say though is that the 'relative' charge on the proton is +1.
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    (Original post by timmymac)
    electroc charge is measured in units called Coulombs. Hence the amount of charge on a proton is 1.6E-19 Coulombs.
    To say the chagre is +1 is incorrect. What you can say though is that the 'relative' charge on the proton is +1.
    Rather you than me!
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    (Original post by vinny2256)
    Rather you than me!

    Ooh, it's not that bad!
    Although, CCEA module 1 was terrible today.
 
 
 
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