8.) Please refer to the diagram on page 41 of your course packet for the remaining questions.  It's a sketch of the Bainbridge mass spectrometer, used to identify the masses of atomic isotopes. 8.) The velocity selector inside the central rectangle has a magnetic field pointing out of the paper with a field strength, B, of 0.380 T and an electric field of strength, E, of 122,000 N/C.  With what speed will ions pass through the slit S2?  Express you answer in exponential notation in m/s. Use the result as the speed of the ions in number 10.   10.) The element tin has ten stable forms; all have 50 protons, but the number of neutrons can vary from 62 to 74 (with not all numbers of neutrons forming stable isotopes).  For an isotope of mass number 119, calculate the distance from the opening in slit S2 to where the ion would land on the photographic film, designated by 2r in the drawing, if the magnetic field B1 has strength of 3.20 T.  Express your answer in centimeters (cm) and in normal notation.  You will need to know that one mass unit equals 1.66 x 10-27 kg. (For example. an isotope with 50 protons and 70 neutrons would have a mass number of 120, which means an actual mass of 1.99 x 10-25 kg.)  Also, assume that the ions have lost just one electron back in the source S, so that they carry a charge of 1.60 x 10-19 C. Speed of the ions is 3.21E5 m/s.

8.) Please refer to the diagram on page 41 of your course packet for the remaining questions.  It's a sketch of the Bainbridge mass spectrometer, used to identify the masses of atomic isotopes.

8.) The velocity selector inside the central rectangle has a magnetic field pointing out of the paper with a field strength, B, of 0.380 T and an electric field of strength, E, of 122,000 N/C.  With what speed will ions pass through the slit S₂?  Express you answer in exponential notation in m/s. Use the result as the speed of the ions in number 10.

10.) The element tin has ten stable forms; all have 50 protons, but the number of neutrons can vary from 62 to 74 (with not all numbers of neutrons forming stable isotopes).  For an isotope of mass number 119, calculate the distance from the opening in slit S₂ to where the ion would land on the photographic film, designated by 2r in the drawing, if the magnetic field B¹ has strength of 3.20 T.  Express your answer in centimeters (cm) and in normal notation.  You will need to know that one mass unit equals 1.66 x 10^-27 kg. (For example. an isotope with 50 protons and 70 neutrons would have a mass number of 120, which means an actual mass of 1.99 x 10^-25 kg.)  Also, assume that the ions have lost just one electron back in the source S, so that they carry a charge of 1.60 x 10^-19 C. Speed of the ions is 3.21E5 m/s.