Cambridge Secondary (7-9). Stage 8. MCE Science. Student Book - Unit 4: The Structure of an Atom - Question 25

Table 4.2 shows six historical models: Dalton (1803), tiny indivisible balls; Thomson (1904), negative electrons embedded in positive material (called proton “soup” in the book); Rutherford (1911), a small heavy nucleus with electrons moving around it; Bohr (1913), electrons in shells; Schrödinger (1926), an electron cloud around the nucleus; Chadwick (1932), neutral neutrons as well as positive protons in the nucleus. These are simplified models, not exact pictures.

Did each model build on the work of the previous scientist?













Share your answers with the class.