what discovery led j.j. thomson to decide that atoms were not indivisible, but are actually composed of…

what discovery led j.j. thomson to decide that atoms were not indivisible, but are actually composed of smaller parts?\nthomson used a scanning tunneling micrograph to capture images of atoms.\nthomson used a beam of negatively charged particles.\nthomson used only the experimental results of other scientists.

what discovery led j.j. thomson to decide that atoms were not indivisible, but are actually composed of smaller parts?\nthomson used a scanning tunneling micrograph to capture images of atoms.\nthomson used a beam of negatively charged particles.\nthomson used only the experimental results of other scientists.

Answer

Brief Explanations:

J.J. Thomson discovered electrons through cathode - ray tube experiments using a beam of negatively - charged particles, which showed atoms were made of smaller parts. Scanning tunneling micrographs came much later and he didn't just rely on others' results.

Answer:

Thomson used a beam of negatively charged particles.