The discovery of the periodic law and subsequent creation and refinement of the periodic table stands beside the discovery of atoms as the be all and end all of chemistry in my eyes.
Realizing that the material of our world corresponds to an underlying organizational principle and being able to - even if bit by bit - understand that principle is absolutely stunning to me.
Today's video looks at how what we think of as the modern periodic table came to be, from initially un-organized list of elements through to a quantum-mechanical-model-based periodic table.
Some of the changes come and go fairly quickly in the video, so be ready to pause and review the notes as the video plays.
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