Question

Which best describes the effect of J. J. Thomson’s discovery?
The accepted model of the atom was changed.
The accepted model of the atom was supported.
Cathode ray tubes were no longer used in experiments due to poor results.
Cathode ray tubes became the only instrument of use in the study of atoms.

Answer 1

The accepted model of the atom was changed.

Thomson’s discovery of the electron showed atoms were divisible and contained internal structure, prompting a new atomic model (the plum‑pudding model) and altering the previous indivisible-atom view.