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Mass spectrometer calculation

I've been trying to do this physics textbook question (question 3), but I don't get the same answer as they do. Does anyone know what I am doing wrong? (I've realised that I didn't need to multiply my answers by 0.5, but I wouldn't get the correct answer anyway)
Physics 1.jpg
Physics 2.jpg
Physics 3.jpg
(edited 9 years ago)
The question says the isotopes are "singly ionised". So the charge they have is just 1.6 x 10-19C and not 26 times that.
(edited 9 years ago)
Reply 2
Original post by Stonebridge
The question says the isotopes are "singly ionised". So the charge they have is just 1.6 x 10-19C and not 26 times that.


That makes so much sense, thank you!

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