History of Atomic Theory

Flashcard
•
Chemistry
•
11th - 12th Grade
•
Hard
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16 questions
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1.
FLASHCARD QUESTION
Front
What experiment did Rutherford conduct to discover the proton?
Back
Gold Foil Experiment
2.
FLASHCARD QUESTION
Front
Who is known for the 'Plum Pudding' model of the atom?
Back
J.J. Thomson
3.
FLASHCARD QUESTION
Front
Which scientist confirmed that the atom is mostly empty space?
Back
Ernest Rutherford
4.
FLASHCARD QUESTION
Front
Who proposed the 'solar system' model of the atom?
Back
Niels Bohr
5.
FLASHCARD QUESTION
Front
Who discovered that the mass of a proton is equal to the mass of a neutron?
Back
James Chadwick
6.
FLASHCARD QUESTION
Front
What is the main idea of Dalton's Atomic Theory?
Back
All matter is made of indivisible atoms, which cannot be created or destroyed.
7.
FLASHCARD QUESTION
Front
What did Niels Bohr contribute to atomic theory?
Back
He proposed that electrons orbit the nucleus in fixed paths or energy levels.
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