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Scientists observed the small scale structure of elements.
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scientific curiosity: Cathode Rays
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That an atom consisted of a small, dense core of positively charged particles in the middle (nucleus) and surrounded by swirling electrons.
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A list shows items. A timeline shows sequence.
Use Timetoast to make dates, milestones, and turning points easier to understand in a clear visual format. Timetoast is a timeline maker for work, school, research, and stories.