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Questions and Answers
Which field did John Dalton make remarkable contributions to?
Which field did John Dalton make remarkable contributions to?
- Mathematics
- Biology
- Geology
- Chemistry (correct)
In which year was John Dalton born?
In which year was John Dalton born?
- 1844
- Eaglesfield
- 1766 (correct)
- 1803
What did Dalton propose in 1803?
What did Dalton propose in 1803?
- Elements combine in fixed ratios
- The atmosphere consists of different gases
- All substances are composed of atoms (correct)
- Atoms have different properties
What concept did Dalton introduce?
What concept did Dalton introduce?
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What did Dalton propose about the atmosphere?
What did Dalton propose about the atmosphere?
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Study Notes
John Dalton's Contributions
- Remarkable contributions made in the field of chemistry, particularly in atomic theory.
- Pioneered the modern understanding of how atoms combine and interact.
Birth Year
- John Dalton was born in 1766.
Proposals in 1803
- In 1803, Dalton proposed the first atomic theory, outlining foundational principles of matter.
- His proposal included the idea that each element is made of atoms that are indivisible and unique to that element.
Concept Introduction
- Introduced the concept of atomic weights, allowing for the comparison of different elements based on their masses.
Atmospheric Proposal
- Proposed that the atmosphere is a mixture of different gases, each exerting its own pressure, which later influenced the development of gas laws.
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