The Periodic Table Could Have Looked Very Different

The Periodic Table Could Have Looked Very Different
AP Photo/Eugene Hoshiko

The periodic table stares down from the walls of just about every chemistry lab. The credit for its creation generally goes to Dimitri Mendeleev, a Russian chemist who in 1869 wrote out the known elements (of which there were 63 at the time) on cards and then arranged them in columns and rows according to their chemical and physical properties.

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