Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


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. Your email address is only used to allow you to reset your password. See 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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
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
Popular Chemistry sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards