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Scientists
Chemistry
Scientist | Observation / Discovery |
---|---|
Henri Becquerel | Radioactivity |
James Rutherford | Nucleus small, dense, positive |
JJ Thompson | Plum pudding model |
John Newlands | Periodic table Increasing rel. atomic mass in Law of Octaves |
Dimitri Mendeleev | Periodic table Order of increasing atomic mass Left gaps No noble gases |
Henry Moseley | Periodic Table Atomic no. Tellerium before Iodine |
Bohr | Existence of energy levels |