By asking questions, conducting investigations, and interpreting results, scientists have a better understanding of what makes up an atom. This ebook uses investigative evidence to examine the structure of atoms and the parts that make up atoms.
Investigating Atoms – The structure of an atom, including atomic particles and the atomic nucleus; atomic size and mass
Properties of Atoms – How the structure of an atom determines properties of elements and how they interact with other elements; the role of neutrons on atomic mass and stability; radioactivity
Energy in Atoms – Quarks; forces that hold together atoms; nuclear reactions