Charge+to+Mass+Ratio

=//Charge to Mass Ratio//=

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The charge to mass ratio is used to find out what a unknown substance is//.// Each charge to mass ratio is unique for each kind of element. The charge to mass ratio or (q/m) was first found by Thomson by his experiments with cathode rays. This discovery made it possible for scientists to figure out what an substance is by using a mass spectrometer. By using the formula q/m = v/rB you can find the c/m, v being the velocity of the particle, r the radius of circular motion and B being the magnetism field. Using the q/m to find out what the particle is, is like using a fingerprint to find a person, it is unique for every element.======

You can find the Charge to mass ratio by using the table of elements. By dividing the charge by the atomic mass in kg, and the charge using 3+, 2+, 2-, ect. multiplied by the elementary charge. If this number is the same as the number from the mass spectrometer you have found your element.

//References//

 * 1) Jim Clark, 2000, []
 * 2) Brad Langdale, 2012, []