5.2 Further Understanding of the Atom Flashcards
1
Q
subatomic particles
A
Particles that are smaller than the atom.
2
Q
Cathode Ray Tube
A
A small glass tube with a cathode (negatively charged metal plate) and an anode (positively charged metal plate) at opposite ends. Used by J. J. Thomson.
3
Q
Electron
A
A negatively charged subatomic particle. Called “corpuscles” by J. J. Thomson.
4
Q
Proton
A
A positively charged subatomic particle
5
Q
Nucleus
A
Tiny clump of positive material at the center of an atom
