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Period: to
Peridoic table make up
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First List of elements
Antoine Lavoisier wrote the first list of elements which contained 33 elements being distinguished between metals and non metals -
Dalton's Law
Dalton's Law came about describing the relationship between the elemnts and mixtures of gasses -
Atomic Therory
John Dalton proposed the atomic theory. -
Letter's are introduced
Jakob Berzelius made a table of atomic weights and introduced symbolism by using letters to reconize the elements -
First periodic table
De Chancourtois assembled the first periodic table classifying elements in a order based on physical and chemical properties -
Early version of periodic table
Lothar Meyer makes a early version of the periodic table with 28 elements organized by valence. -
Updated periodic table
Dmitri Mendeleev made a element periodic table with 66 known elements organzined by atomic weights and elements with simmilar properties were grouped up -
order of elements
John Newlands aranged in order of tomic weights and looked at the similartites between the 1st and 9th elemnt. He discoverd the Law Of Octaves. -
updated periodic table
Lothar Meyer compleated a table of 56 emelemnts based of propities. and were arranged in order of atomic weight -
Noble Gasses
William Ramsay discoverd the noble gasses -
Argon
Lord Raylegh discoverd argon -
Discovery of neon
William Ramsey helped the discovery of a group with zero velocity which helped with the discovery of neon -
Nuclear charge
Ernest Rutherford discoverd the nuclear chnage of a nucleous is the same as the atomic mass -
Actomic numbers
All elements got a atomic number -
Isotopes of elements
Henry Mosley discoverd the isotopes of elements