# Oxygen-16 Ion#

An oxygen-16 ion with a mass of $$2.66 \times 10^{-26} \textrm{ kg}$$ travels at $${{params.v}} \times 10^{6} \textrm{ m/s}$$ perpendicular to a $${{params.B}} \textrm{ T}$$ magnetic field, which makes it move in a circular arc with a $${{params.r}} \textrm{ m}$$ radius.

## Part 1#

What positive charge is on the ion?

## Part 2#

What is the ratio of this charge to the charge of an electron?