'J.J. Thompson developed a cathode-ray tube with a screen to measure velocity of these particles'
electrons
NUCLEAR PHYSICS: J.J. Thompson developed a cathode-ray tube with a screen to measure velocity of these particles
J.J. Thompson developed a cathode-ray tube with a screen to measure velocity of these particles
J.J. Thompson developed a cathode-ray tube with a screen to measure velocity of these particles
NUCLEAR PHYSICS
electrons
NUCLEAR PHYSICS