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Questions and Answers
What was the outcome of using the calculated charge of the electron?
What was the outcome of using the calculated charge of the electron?
- Confirmation of prevailing atomic models
- Discovery of neutrons
- A more accurate determination of the elementary charge (correct)
- Development of the nuclear model of the atom
What was the result of Rutherford's experiment involving alpha particles and gold foil?
What was the result of Rutherford's experiment involving alpha particles and gold foil?
- All alpha particles passed through the foil
- Some alpha particles bounced back, challenging prevailing atomic models (correct)
- The alpha particles were absorbed by the gold foil
- The gold foil was destroyed by the alpha particles
What did Chadwick's 1932 experiment involve?
What did Chadwick's 1932 experiment involve?
- Bombarding atoms with neutrons
- Bombarding nuclei with electrons
- Bombarding gold foil with alpha particles
- Bombarding beryllium with alpha particles (correct)
What is the law of multiple proportions?
What is the law of multiple proportions?
What was Rutherford's 1920 postulation?
What was Rutherford's 1920 postulation?
What was the significance of the use of cathode-ray tubes in the discovery of electrons?
What was the significance of the use of cathode-ray tubes in the discovery of electrons?
What is true about electromagnetic waves?
What is true about electromagnetic waves?
What is the 'plum pudding model' of the atom?
What is the 'plum pudding model' of the atom?
What was the method used by Millikan to determine the charge of an electron?
What was the method used by Millikan to determine the charge of an electron?
What is the significance of the fact that H2O is always 1:8 Hydrogen to Oxygen by mass?
What is the significance of the fact that H2O is always 1:8 Hydrogen to Oxygen by mass?
What is the significance of the discovery of electrons?
What is the significance of the discovery of electrons?
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