Question

What part of Thomson’s experiment helped him demonstrate that the negative subatomic particles (later called electrons) was a fundamental part of all atoms?The cathode ray deflected in the same direction no matter the strength of the magnetic field.The cathode ray changed colors, when different metals were used at the cathode.The same particles were emitted, when different metals were used at the cathode.The same particles were emitted no matter the direction of the cathode ray beam

Answer 1

Thomson's experiment with the cathode ray tube showed that the negative subatomic particles, electrons, are fundamental components of all atoms. The cathode ray was deflected in the same direction regardless of the strength of the magnetic field, indicating the presence of negative charges.

Step-by-step explanation:

Thomson's experiment with the cathode ray tube helped him demonstrate that the negative subatomic particles, later called electrons, were a fundamental part of all atoms by observing the deflection of the cathode ray. He found that the cathode ray was deflected in the same direction no matter the strength of the magnetic field, indicating that the particles had a negative charge. This led Thomson to conclude that electrons were fundamental components of all atoms.