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Sir Francis Bacon
published "The Proficience and Advancement of Learning" which contained a description of what would later be known as the scientific method. -
Johann Wolfgang Döbereiner
He began to formulate on of the earliest attempts to classify the elements. -
Johann Wolfgang Döbereiner
he found that some elements formed groups of three with related properties.J -
Alexandre-Emile Béguyer de Chancourtois
His paper was published,but used geological rather than chemical terms. -
Lothar Meyer
develops an early version of the periodic table, with 28 elements organized by valence -
Dmitri Mendeleev
A russian scientist that created the first ever periodic table acording to atomic mass. -
willam ramsey
discovered the Noble Gases -
Henry Moseley
found a relationship between an element's X-ray wavelength and its atomic number (Z), and therefore resequenced the table by nuclear charge rather than atomic weight.
