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Whose discovery was the periodic table of elements?

ScienceChemistry

Quick Answer

Dmitri Mendeleev created the first widely accepted periodic table in 1869. He arranged elements by repeating chemical properties and even predicted undiscovered ones.

The Full Story

Dmitri Mendeleev published his periodic table in 1869, organizing the known elements by atomic weight and recurring chemical properties. His great insight was to leave gaps where unknown elements should fit, and later discoveries confirmed several of his predictions. The periodic table became one of the central tools of chemistry. Modern versions are arranged by atomic number, but Mendeleev’s pattern remains the core idea.

Key Facts

1.Published in 1869
2.Dmitri Mendeleev created it
3.Predicted missing elements

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"A table that predicted the future of chemistry."