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Place the discoveries in time

Exercise and reference answers

End
1940
Start
1900
Events
  1. Year
    1906
    Item
    Thomson's Nobel Prize
  2. Year
    1919
    Item
    Proton characterised
  3. Year
    1926
    Item
    Pauli's principle
  4. Year
    1932
    Item
    Neutron discovered
Instructions
Drag each event to the year it happened.

Explanation

_Source: syllabus Chemistry, Ch 2 'Structure of Atom'_
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