10. The operator of a mass spectrometer produces a beam of singly ionized argon atoms. They are accelerated by a potential difference of 40.0 V and are passed through a magnetic field of 0.080 T. The operator finds that the radius of the beam is 72 mm. What is the mass of the argon atom? Enter your answer 11. An isotope of argon has two more proton masses than the isotope in Question 10. If the same potential difference and magnetic field strength are used, what will be the radius of the isotope's path? Assume the isotope is singly ionized. CO Enter your