Atomic Models, Evidence, and Atomic Structure

Place the Dalton, Thomson, Rutherford, and Bohr atomic models in chronological order and identify the defining feature of each model.

Explain how experimental evidence led scientists to replace Thomson’s atomic model with Rutherford’s nuclear model.

Distinguish protons, neutrons, and electrons by their location, relative charge, and relative mass.

Distinguish atomic number from mass number in atomic notation.

Calculate the numbers of protons, neutrons, and electrons in a neutral atom from its atomic number and mass number.

Identify whether two atoms are isotopes of the same element from their particle counts or atomic notation.