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Whose work produced the first reliable table of atomic weights?
ChemistryPeriodic Table
Quick Answer
Dmitri Mendeleev and later chemists refined atomic weights as the periodic table developed. The modern table uses standardized atomic masses based on isotopes.
The Full Story
The development of reliable atomic weights was a long scientific effort, but Mendeleev’s periodic table in 1869 helped organize the elements and compare their relative masses. Later, isotope research and mass spectrometry made atomic-weight measurements far more precise. The modern periodic table now lists standard atomic masses based on the natural abundance of isotopes. This system is vital for chemistry, industry and laboratory calculations.
Key Facts
1.1869 table helped organize atomic masses
2.modern values depend on isotopic abundance
3.mass spectrometry improved precision
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Suggested video title for this topic:
"How scientists learned what atoms really weigh"