WHY JJ THOMSON THOUGHT that the particles coming from cathode are electrons but not atoms charged negatively. .Pls answer it correctly.
Answers
Explanation:
We know that Same(like)(+,+ or -,-) charges repel each other while different(unlike)(+,-) attract each other.
JJ Thomson found that the path through which the cathode ray travels bent towards a positive metal plate, while it moves (repel)away from a negative metal plate.
So, this makes clear that the particles in the cathode ray were negatively charged.
Experiments with the magnets also proved that the particles in the cathode ray had mass.
One main reason was Photo-electric effect.
It means , The phenomenon of ejection of electrons from the metal surface when light falls or strikes on it is called Photo-electric effect.
Now, Due to the fact that those negatively charged particles contained mass and was a Sub-atomic particles which means a constituent of an atom itself so, Thomson thought it would be electrons and not the atoms.