Required information In one type of mass spectrometer, ions having the same velocity move through a uniform magnetic field. The spectrometer 12CJr 14C+ ions. The "ZCJr ions move in a circle of diameter 38.2 cm. Use these atomic is being used to distinguish and mass values: 12C, 12.0 u; 14C, 14.0 u. What is the ratio of the frequencies of revolution for the two types of ions? :1