In 1808, whose work provided a physical picture of how compounds are formed by the combination of two or more different types of atoms?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. John Dalton.
- In 1808, John Dalton introduced his atomic theory, providing a foundational physical explanation for the formation of compounds.
- He proposed that compounds are formed by the combination of two or more different types of atoms in fixed ratios. Dalton's work laid the groundwork for modern chemistry by explaining the composition and reactions of matter at an atomic level.