Why did Thomson choose electric current only and also electrons were already discovered during the flow of electricity.why didn't Thomson choose any other rays or any thing to conduct the canal ray experiment.
Which sub-atomic particles of an atom are present in the nucleus of an atom?
A = Electrons
B = Protons
C = Neutrons
Select the sub-atomic particles that are present in the nucleus of an atom.
A. Electrons
B. Protons
C. Neutrons