History of the Periodic Table Flashcards
The Four element theory of Aristotle?
Earth, Fire, Water, Air
Who wrote the first list of
elements containing 33
elements and distinguished between metals and non-metals?
Antoine Lavoisier
Who developed a table of atomic weights and introduced letters to symbolize elements?
Jons Jakob Berzelius
Who developed ‘triads’, groups of 3 elements with similar properties?
Johann Döbereiner
who arranged the elements in order according to their atomic weights and observed similarities between the first and ninth elements, the second and tenth
elements etc.?
John Newlands
He proposed the ‘Law of Octaves’
John Newlands
Who compiled a Periodic Table of 56 elements based on the periodicity of properties such as molar volume when arranged in order of atomic weight?
Lothar Meyer
Who Produced a table based on atomic weights but
arranged ‘periodically’ with elements with similar
properties under each other
Dmitri Mendeleev
Who Discovered the Noble
Gases?
William Ramsay
He modified the ‘Periodic Law’ to read that the properties of the elements vary periodically with
their atomic numbers.
Henry Moseley
He synthesized transuranic elements
– The elements after uranium #92 in the periodic
table
– Also part of the Actinides
Glenn Seaborg
