Podcast
Questions and Answers
Who was the first person to use the term 'atom' (atomos: meaning indivisible)?
Who was the first person to use the term 'atom' (atomos: meaning indivisible)?
- John Dalton
- Democritus (correct)
- J.J Thomson
- Aristotle
Who was the first scientist to adapt Democritus' theory into the first modern atomic model?
Who was the first scientist to adapt Democritus' theory into the first modern atomic model?
- John Dalton (correct)
- Democritus
- Aristotle
- J.J Thomson
Which scientist modified an earlier theory that matter was made of four 'elements' (earth, fire, water, air)?
Which scientist modified an earlier theory that matter was made of four 'elements' (earth, fire, water, air)?
- Aristotle (correct)
- Democritus
- John Dalton
- J.J Thomson
Which scientist is credited for discovering the electron?
Which scientist is credited for discovering the electron?
According to John Dalton's atomic model, what are all atoms of an element identical in?
According to John Dalton's atomic model, what are all atoms of an element identical in?
Flashcards
Who coined the term 'atom'?
Who coined the term 'atom'?
Democritus was the first person to use the term 'atom' (atomos: meaning indivisible).
First modern atomic model?
First modern atomic model?
John Dalton adapted Democritus' theory into the first modern atomic model.
Four elements theory?
Four elements theory?
Aristotle modified the theory of matter as four 'elements' (earth, fire, water, air).
Who discovered the electron?
Who discovered the electron?
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Dalton's atomic element identity?
Dalton's atomic element identity?
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Study Notes
Atomic Theory
- Democritus was the first person to use the term 'atom' (atomos: meaning indivisible).
Development of Atomic Model
- John Dalton adapted Democritus' theory into the first modern atomic model.
Four Elements Theory
- Ancient Greek philosopher Empedocles modified an earlier theory that matter was made of four 'elements' (earth, fire, water, air).
Electron Discovery
- J.J. Thomson is credited for discovering the electron.
Dalton's Atomic Model
- According to John Dalton's atomic model, all atoms of an element are identical in mass, size, and properties.
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