Multiple Choice
How did the earliest idea about atoms, proposed by philosophers like Democritus, differ from the later work of scientists such as Dalton?
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2. Atoms & Elements
Atomic Theory
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In which atomic model are atoms imagined as tiny, indivisible balls?
A
Rutherford's model
B
Bohr's model
C
Thomson's model
D
Dalton's model
Verified step by step guidance1
Understand that the question asks about the atomic model where atoms are considered tiny, indivisible balls.
Recall that Dalton's atomic model, proposed in the early 19th century, described atoms as solid, indivisible spheres without internal structure.
Contrast this with other models: Thomson's model introduced the 'plum pudding' concept with electrons embedded in a positive sphere; Rutherford's model introduced a nucleus with electrons orbiting around it; Bohr's model refined Rutherford's by quantizing electron orbits.
Therefore, identify that the model imagining atoms as tiny, indivisible balls is Dalton's model.
Summarize that Dalton's model is the earliest atomic theory treating atoms as solid, indivisible particles, which matches the description in the question.
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