Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

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.
Didn't know it?
click below
Knew it?
click below
Don't Know
Remaining cards (0)
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 Structure

discovered the nucleus of an atom rutherford
proposed the planetary model for atomic structure niel bohr
stated the uncertainty principle neisenberg
discovered the electron JJ Tomson
stated that it is impossible to know the position and speed of an electron at the same time heisenberg
bombarded gold foil with helium nuclei rutherford
stated that electrons exist in specific energy levels neils bohr
used a cathode ray tube and discovered that electrons are negatively charged particles JJ Tompson
developed an equation to predict the probable location of an electron schroedinger
discovered the neutron chadwick
calculated that the nucleus was 1/10000 the diameter of the atom rutherford
developed an equations which is used to find the energy of photon of light pianck
a series of bands of colors emitted by excited atom emission light specturm
the lowest energy state of an atom ground state
an energized stat of an atom excited state
an instrument used to measure the wavelength of light spectrometer
an equation for finding the energy of a wave E=h.V
the theory that describes waves at teh atomic levels quantum theory
an amount of energy that can be absorbed or released quantua
packets of lights given off the excited atoms photon
stated the atomic theory John Dalton
compounds have a definite compositions by mass law of defini
Created by: Parkster
Popular Chemistry sets




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:
restart all cards