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Order the atomic models in this chapter

Exercise and reference answers

Steps
  1. Thomson: a sphere of positive charge with electrons embedded in it
  2. Rutherford: mass and positive charge concentrated in a tiny nucleus
  3. Bohr: electrons in stable stationary orbits, from three postulates

Explanation

Thomson, then Rutherford, then Bohr, each answering the last one's failure. Source: syllabus Physics, Ch 12 Atoms.
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