Practice problem
Isotopes — Definition & Overview

Particles enter the spectrometer at a uniform velocity and charge, then curve due to the magnetic field.
Mass spectrometry is a method of analyzing a sample based on the mass of the constituents. If the radius of curvature is given by equation below, which isotope of carbon will travel the furthest? r is the radius of curvature, m is the mass, v is the velocity, q is the charge, and B is the magnetic field.