Here is the problem which I am struggling on, please help me!
Problem: During World War II, mass spectrometers were used to separate the radioactive uranium isotope U-235 from its far more common isotope, U-238.
Question: Estimate the radius of the circle traced out by a singly ionized lead atom moving at the same speed. (The atomic mass of lead is 207.2 amu).
Please show work I think I have the solution just not positive.