7 Scientists In Modern Atomic Theory Flashcards
(7 cards)
Who discovered the electron & the charge to mass ratio and developed the plum putting model?
JJET
JJ Thompson
Who used charged oil droplets and found that the charge is raw multiples of one small number?
REM Robert Electron Millikan
Robert Millikan - charge of an Electron
-1.6*10^-19 coulombs
Who found raise that could not be deflected by a magnet and named them x-rays?
Wilhelm Rontgen
Who found raise from uranium that were energetic and not deflected by magnets?
A RUM BUM
Radiation
Antoine Becquerel
Who coined the term radioactive?
And claim that these rays spontaneously emitted particles and or radiation ?
Marie Curie
Who shot Alpha particles at gold foil and found deflections claiming that most of the atom is empty space.
The positive particles called protons inside the nucleus, which is the center of the atom were responsible for the deflections
Ernest P Rutherford Protons
Who bombarded beryllium with alpha particles and found that high energy, neutral particles called neutrons were emitted?
James Chadwick - Neutrons
