Save
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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know
Remaining cards (0)
Know
0:00
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 Structur

QuestionAnswer
Bohr Model electrons travel in special orbits around the nucleus; they have a fixed energy
Quantum Mechanical Model electrons can be found in specific regions 90% of the time
Energy Level the region of an electron around the nucleus where the electron is likely to be moving
Quantum of energy amount of energy required to move electron from its present energy level to the higher one
Orbit fixed path that the electron follows
Orbital where the electrons can be found 90% of the time
Aufbau Principle electrons enter orbitals of lowest energy first
Pauli Exclusion Principle no two electrons can have the same set of 4 quantum numbers; an electron orbital may describe at most two electrons
Hund's Rule electrons enter orbitals singly and only double up after each possible orbital contains 1 electron
Electromagnetic Radiation Radio, micro, infrared, visible, ultraviolet, x-rays, gamma
Visible Light Red, Orange, Yellow, Green, Blue, Indigo, Violet
Wavelength units m, cm, nm
Frequency units Hz, 1/s, s^-1
Speed of Light 3.00 x 10^8 m/s
Atomic Emission Spectrum pattern of frequencies; obtained by passing light emitted by atoms in the gaseous state
Photons bundles of electromagnetic energy which behave as particles; also - a quantum of light
Photoelectric Effect electrons are ejected by certain metals when they absorb light w/ a frequency ABOVE a threshold frequency
Heisenberg Uncertainty Principle it is impossible to know both the velocity and the positions of a particle at the same time
Created by: v
 

 



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