Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards




share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Atomic Innovators

Way Old Men and their theories about atomic structure

QuestionAnswer
1st to propose that matter is not infinitely divisible and limit = atomos Democritus
Says matter is empty space through which atomos move Democritus
Believed matter was infinitely divisible (disagreed with Democritus) Aristotle
Believed all matter was fire, earth, air, and water. Aristotle
Believed all atoms of a given element are identical and are different from atoms of other elements John Dalton
Said atoms cannot be created, destroyed, or divided into smaller particles John Dalton
Said that atoms combine in simple whole number compound rations to make compounds John Dalton
Said that in a chemical reaction, atoms are spearated, combined, or rearranged John Dalton
Discovered 1st subatomic particle, electron, with CRT J.J. Thompson
Proposed Plum Pudding model to explain the neturality of an atom J.J. Thompson
Inadvertently disprove plum pudding model by firing alpha particles at gold foil, resulting in deflection of alpha particles Ernest Rutherford
Proposed that the atom had a tiny, dense central portion and that the elctrons move through empty space around the nucleus; later states that protons are in the nucleus. Ernest Rutherford
Proposed that the nucleus had another particle in it with a mass near that of the proton but with no charge James Chadwick
Proposed a quantum model of the atom in which the electrons followed distinct orbits around the nucleus Niels Bohr
Proposed that the electrons traveled in wave-like orbits (known as Quantum Mechanical Model) Louis de Broglie
Created by: cablecars513