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shutvik [7]
4 years ago
13

Why they call it "Periodic Table"?

Chemistry
2 answers:
algol [13]4 years ago
4 0
Scientists finally found the reason for the periodicity of the elements: Valence electrons. And so the table became known as the Periodic Table
sesenic [268]4 years ago
4 0
The periodic table has rows running left to right and colums running up and down.
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