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Questions and Answers
Who proposed the billiard ball model of the atom?
Who proposed the billiard ball model of the atom?
- Gulilat Tayu
- Michael Faraday
- John Dalton (correct)
- William Crookes
What did Dalton consider about the atoms of an element?
What did Dalton consider about the atoms of an element?
- They have identical properties in size and mass (correct)
- They are indivisible
- They are composed of different kinds of atoms
- They have different properties in size and mass
Who experimented with gas discharge tubes and discovered cathode rays?
Who experimented with gas discharge tubes and discovered cathode rays?
- Gulilat Tayu
- Michael Faraday
- John Dalton
- William Crookes (correct)
What did William Crookes discover when the high-voltage current was turned on in the gas discharge tubes?
What did William Crookes discover when the high-voltage current was turned on in the gas discharge tubes?
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What did Dalton imagine all atoms to be like in his atomic model?
What did Dalton imagine all atoms to be like in his atomic model?
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Study Notes
Atomic Models
- Dalton proposed the billiard ball model of the atom
Dalton's Atomic Theory
- Dalton considered that atoms of an element are identical in mass, size, and properties
Cathode Rays
- J.J. Thomson experimented with gas discharge tubes and discovered cathode rays
- William Crookes discovered that when a high-voltage current was turned on in the gas discharge tubes, the cathode rays produced a fluorescent glow on the glass wall of the tube
Dalton's Atomic Model
- Dalton imagined all atoms to be like small, solid, and indivisible particles, similar to billiard balls
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