Atoms, Molecules and Ions Flashcards
He is a Greek Philosopher
Democritus
He is a british scientist that discovered atoms
John Dalton
This Law states that elements form compounds in fixed proportions by mass and by extension by atom.
Law of Definite Proportion
Who proposed the law of Definite Proportion
Joseph Proust
This Law states that certain kinds of elements can combine in different ratios leading to the formation of different compounds
Law of Multiple Proportion
Who made the Law of Multiple Proportion based on his observations on the reaction of the atmospheric gases
John Dalton
This Law states that because atoms involved in chemical reactions are still retained, then the combined mass of these atoms are also retained.
Law of Conservation of Mass
Who founded the Law of Conservation of Mass
Antoine Lawoiser
An atomic model Made by John Dalton when he imagined the structure of an atom and described it to be extremely small spheres.
Billiard ball Model
What are 3 types of subatomic particles that are found within atoms
Protons, Electrons and Neutrons
This is a subatomic particle that possesses a negative charge
Electron
Who discovered the Electron because of his Cathode Ray experiment
Joseph John Thomson (JJ Thomson)
Thomson proposed his own model that he described as a jelly like positive matter with negatively charged particles embedded with it.
Plum-Pudding Model
This is a subatomic particle with a positive charge
Proton
Who discovered the proton when working on his Gold Foil Experiment
Ernest Rutherford
