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:

Before Thomson, atoms were thought to be indivisible. His cathode - ray experiments led to the discovery of electrons, showing that atoms are made of smaller particles. He did not give a picture of what atoms look like, nor evidence about creation/destruction of atoms or the first evidence that matter is made of atoms.

Answer:

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