Moseley was a British chemist who developed X-ray spectra which allowed humans to begin to be able to study the structure of atoms. His discovery allowed for the periodic table to become more accurate and number based as their structures were beginning to become unwound.
Henry Moseley was a British physicist, known for his discoveries relating to the periodic table. His experiments with the x-ray machine led to the discovery that the elements progressed based on the number of protons in the nucleus. Previously, the order of the table had been based on atomic weights. He established the scientific way that we still use today for the periodic table, with the arrangement of chemicals based on their atomic numbers. Moseley’s career ended early and tragically during a battle in World War I in 1915.
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