Mass of an Atom and magnetics problem

AI Thread Summary
To determine the mass of a chlorine anion, the ion's velocity, radius of its circular path, and magnetic field strength must be utilized. The velocity can be calculated using the potential difference the ion was accelerated through. The relationship between centripetal force and magnetic force is crucial, as the magnetic force provides the necessary centripetal force for circular motion. By equating these forces, the mass of the ion can be derived. Understanding these principles is essential for solving the problem effectively.
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Homework Statement


The mass of an atom can be determined by ionizing it and accelerating it through a known electric field followed by a known magnetic field. The ion’s circular path is then measured. Calculate the mass of a chlorine anion of charge 3.20 x 10-19 C if it follows a circular path of radius 0.862 cm after it has been accelerated through a potential difference of 2.5 x102 V and the exposed to a uniform magnetic field of strength 3.00 T .


Homework Equations





The Attempt at a Solution



I don`t even know where to begin. I can calculate the velocity of the atom after it is accelerated. Nut how does knowing the velocity, radius and field strength help me find its mass?
 
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adhoward24 said:
I can calculate the velocity of the atom after it is accelerated.

Do you mean the velocity expressed in terms of mass? Please, let us see your work.

Nut how does knowing the velocity, radius and field strength help me find its mass?

The ion moves in a circle. How does centripetal force fit into this? :wink:
 
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