Scientific Models of the Atom

Describe the historical progression of atomic models, including the Dalton model, the plum pudding model, the nuclear model, and the discovery of neutrons.
Explain how the Dalton model represented spherical atoms that could not be split to account for gas properties and compound formulas.
Understand that the discovery of the electron led to the plum pudding model, proving atoms contain smaller sub-atomic particles.
Describe how the alpha particle scattering experiment led to the nuclear model by showing that mass and positive charge are concentrated at the center of the atom.
Explain how the discovery of neutrons accounted for the missing mass in atomic nuclei.
Evaluate how new experimental data or observations drive the modification and development of scientific models.
Analyze given experimental data to determine whether it supports a specific atomic theory.

What you need to know