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people chem chapter4

QuestionAnswer
Democritus the first person who said the word atom
Why was Democritus a fool He had no scientific evidence to back up his theory
What did Democritus believe he beelvied that atoms were indivisible and indestructible
Aristotle Rejected the theory of atoms
What did aristotle believe he believed in the 4 core elements of fire earth water air
Antoine lavoisier Created the law conservation of matter
What is the law conservation of matter Matter is not created nor destroyed during a chemical reaction
Joseph Proust Law of definite proportions
What is the law of definite proportions when adding the mass of two elements it has to be the same every time so if o has 16 and hydrogen has 2 you always need to get 18
John Dalton law of multiple proportions believed elements are indivisible solid spheres all atoms of an elemet are identical different elements different masses combine in whole numbers
what is the law of multiple proportions When 2 elements form more than one compound they do so in a ratio of whole numbers
what is wrong with Dalton's atomic theory atoms are divisible in 3 subatomic particles
JJ thomson Who did the cathode ray tube experiment and the plum pudding model
WHo named an electron JJ Thomson named it
What is the cathode ray tube the cathode ray tube was when electrons travel from the cathode ray is negative and then the metal disks were positive so they attracted
Ernest Rutherford who did the Gold foil experiment
WHat did Rutherford believe atoms have a empty space but its dense at the nucleus and nucleus has a positive charge
Created by: user-1795022
 

 



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