Question

why did thomsons results from experimenting with cathode rays cause a big change in scientific thought about atoms? his results gave people a picture of what atoms look like for the first time. his results gave the first clues that atoms could be created and destroyed. his results gave the first experimental evidence that matter is made up of atoms. his results gave the first evidence that atoms were made up of smaller particles.

Explanation:

Thomson's cathode - ray experiments led to the discovery of electrons, showing that atoms were not indivisible but made up of smaller particles. Before this, atoms were thought to be the smallest unit of matter. His work was a major shift in understanding atomic structure.

Answer:

His results gave the first evidence that atoms were made up of smaller particles.