===Equation===
: [[Retention Factor]] = (distance moved by [[chemical]])/(distance moved by [[solvent]])
<math>R_f = \frac{d_c}{d_s}</math>
:Where::R<sub>f</sub> = [[Retention Factor]]:d<sub>c</sub> = distance moved by the [[chemical]]:d<sub>s</sub> = distance moved by the [[solvent]]