Lesson Playlist: History of the Periodic Table Science
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01:51
Recalling the Phenomenon Moseley Observed When He Proposed Organizing the Elements by Atomic Number
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00:57
Recalling How Mendeleev Ordered His Periodic Table
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01:40
Recalling Why Mendeleev Left Gaps in His Periodic Table
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01:03
Recalling Which Particle’s Number in the Nucleus of an Atom the Elements in the Modern Periodic Table Are Arranged By