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You have a Bainbridge Mass Spectrometer with an electric field in the velocity selector of 1.20...

You have a Bainbridge Mass Spectrometer with an electric field in the velocity selector of 1.20 x 105 V/m and a magnetic field in both regions of 0.600 T. A stream of singly charged ions from a pure source (i.e.-all the atoms are the same type of element) move in a semicircular arc and strike the recording plate 1.46 m from the opening in the magnetic field chamber. Determine the mass of the ions. Given the fact that the mass of a proton is 1.67 x 10-27 kg, make an educated guess as to what the element is.

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