alexandre-émile béguyer de chancourtois made the first early form of the periodic table of elements in 1862.
alexandre-émile béguyer de chancourtois made the first early form of the periodic table of elements in 1862.
who made the first early form of the periodic table of elements in 1862?
alexandre-émile béguyer de chancourtois
in 1862, the french geologist alexandre-émile béguyer de chancourtois published an early form of the periodic table, which he called the telluric helix or screw. he was the first person to notice the periodicity of the elements. with the elements arranged in a spiral on a cylinder by order of increasing atomic weight, de chancourtois showed that elements with similar properties seemed to occur at regular intervals. his chart included some ions and compounds in addition to elements. his paper also used geological rather than chemical terms and did not include a diagram. as a result, it received little attention until the work of dmitri mendeleev.
periodic table
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section::::isotopes for elements 15-29.









































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section::::isotopes for elements 30-44.









































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section::::isotopes for elements 45-59.









































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section::::isotopes for elements 60-74.









































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section::::isotopes for elements 75-89.









































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table of nuclides (segmented, narrow)