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Proposed his classification of elements based on the updated values of the atomic weights from Stanislao Cannizzaro in 1858
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In his new book, "Die modernen Theorien der Chemie." Julius created an early version of the periodic table containing 28 elements on 6 groups, organised by their valence
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Similar to Alexandre before him, Newlands proposed the table to be sorted by Atomic Mass and that each element is similar to the one 8 before it
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Describe elements based on both Atomic wight and Valence. he also predicted new elements to appear and when they were later discovered they fit perfectly into the spaces he left.
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Discovered 3 types of Radiation and name Alpha, Beta and Gamma and that it broke down electrons within Atoms
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Ramsey and Rayleigh wrote a joint paper describing the new element they found named Argon after removing all the components of air and finding a gas left with one sixteenth of the original volume
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William Ramsey discovered Neon Krypton and Radon
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Labeled the elements with atomic numbers based on the amount of electrons in the atom rather than the atomic mass
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Identified Lanthanides and Actinides which are elements with an Atomic numbers with 92 and placed them in a section at the bottom of the table