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Periodic Table

Chemistry Stuff

QuestionAnswer
Who is credited with starting the story of the periodic table? Antoine Lavoisier
Name four elements discovered by Jons Jacob Berzelius. Silicon, Selenium, Cerium and Thorium
In what way did he contribute to the development of the periodic table? He labelled elements to make them easier to categorise as well as ordering them in a primitive table in relation to atomic mass.
How many elements did John Newlands discover and classify? 56
How did Dimitri Mendeleev contribute to the periodic table? Produced a table of atomic weights, with periods to group shared properties as well as leaving gaps for predicted undiscovered elements.
What do the elements in a group have in common? The amount of electrons in an outer shell.
What do the groups in a period have in common? The amount of shells.
Created by: TwoDoorBicycle
 

 



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