📝 Multiple Choice Question
General-science
In which year did John Dalton present his atomic theory, the second part of which states that all atoms of a particular element are equal?
A
1825
B
1808
C
1811
D
1800
Explanation
John Dalton first introduced his scientific atomic theory in 1803 and officially published it in his 1808 work, 'A New System of Chemical Philosophy'. This theory was a major historical milestone because it scientifically proposed that all matter is composed of indivisible atoms.
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