Why did Thomson's results from experimenting with cathode rays cause a big change in scientifi atoms? His results gave people a picture of what atoms look like for the first time D His results gave the first clues that atoms could be created and destroyed. D 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.

## Step 1<br />J.J. Thomson's experiments with cathode rays led to the discovery of the electron, a subatomic particle. This was a significant breakthrough in the field of atomic theory.<br /><br />## Step 2<br />Thomson's findings challenged the prevailing atomic theory of the time, which proposed that atoms were indivisible and indestructible. His discovery of the electron, a particle smaller than an atom, provided evidence that atoms were not indivisible as previously thought.<br /><br />## Step 3<br />Thomson's findings did not provide a visual representation of atoms, nor did they provide evidence that atoms could be created or destroyed. Therefore, options A, B, and C are not correct.<br /><br />## Step 4<br />Thomson's findings did provide the first evidence that atoms were made up of smaller particles, which is why option D is the correct answer.