Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
12 Cards in this Set
- Front
- Back
Aristotle |
Matter is continuous |
|
Democritus |
Matter is continuous 'atamos' |
|
Robert boyel |
Studied gas and indiv particles instead of continuous mass |
|
Antoine lavosier |
Law of conservation of mass |
|
Joseph proust |
Law of constant composition |
|
John dalton |
Took work of previous scientists and made four postulates |
|
Daltons atomic theory |
Matter is made of atoms, atoms of an element are identical, elements form whole ratios to make compounds, matter is not cteate or destroy in chem rx |
|
J. J thomson |
Discovered the electron |
|
Robert millikan |
Determined mass and charge of electron |
|
Rutherford |
Gold foil experiment led to current atom model |
|
Rutherford conclusion |
Atom is mostly empty space with postive charge center e are scatteted randomly in empty space |
|
James chadwick |
Discovered nuetrons |