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Which model does this belong to?

Exercise and reference answers

Items
  1. Item
    Electrons embedded in positive charge
    Category
    Thomson
  2. Item
    Mass spread evenly through the atom
    Category
    Thomson
  3. Item
    A tiny dense nucleus
    Category
    Rutherford
  4. Item
    Based on alpha-particle scattering
    Category
    Rutherford
  5. Item
    Only certain orbits are allowed
    Category
    Bohr
  6. Item
    Each orbit has a fixed energy
    Category
    Bohr
Categories
  1. Item
    Thomson
  2. Item
    Rutherford
  3. Item
    Bohr

Explanation

Three models, three distinct pictures of where the electron is. Source: syllabus Chemistry Part I, Ch 2 Structure of Atom.
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