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Antoine Lavoisier
Lavoisier experimented with phosphorus, which caused him to discover some of the major properties in chemical reaction and combustion. -
Johann Wolfgang Döbereiner
Döbereiner put forward his Law of Triads in 1810. This was the basis scientists then used when grouping elements based on their similar appearances and reactions. -
John Newlands
Newlands put forward his Law of Octaves, which rearranged the elements by order of their atomic number. Although this method did have some great problems, (such as gaps in certain spots), this formed the basis for modern arranging of the elements today. -
Dmitri Mendeleev
Five years after John Newlands put forward his Law of Octaves, Mendeleev published his version of the periodic table that arranged the known elements of the time by their atomic mass and similar properties in vertical columns. While his table had gaps, these missing spots were later filled in with the discoveries of new elements. -
Julius Meyer
Meyer produced his own version of the periodic table a couple of years before Dmitri Mendeleev's table. Both tables did share some similarities, but Meyer's table mainly focused on repeating periodic properties. Both scientists were unaware of each others progress on this subject. -
Glenn Seaborg
Through his discovery of platinum and other trans-uranium elements, Seaborg then discovered was able to predict the characteristics of the many isotopic elements that were yet to be found.