How did the periodic table change over time

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asked Nov 26, 2021 14.8k views

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Scepticalist · Answer 1 · 2021-11-27T22:24:17+0000

Answer:

The first periodic table in the "rows and columns" form we see today was invented by Dmitri Mendeleev in 1869. It included the properties of all of the known elements of that time. Mendeleev's left gaps in the periodic table as he knew there were yet to be other elements discovered and that has now been filled with the other discovered elements.

Moussa Harajli · Answer 2 · 2021-12-02T09:28:36+0000

Answer:

The periodic table has long-since filled in Mendeleev's gaps and has added new elements.It has even changed the weights of other elements.

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How did the periodic table change over time

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