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

Chapter 7

The Quantum-Mechanical Model of the Atom (Test 3)

QuestionAnswer
wavelength lambda; units in length
frequency nu; units in Hz or 1/s
amplitude the intensity or brightness of light
E sub photon the energy of one photon of light
h Planck's constant; 6.626 * 10^-34 J*s
c speed of light; 2.998 * 10^8 m/s
What equation can you relate wavelength, frequency, and the speed of light? lambda = c / nu nu = c / lambda lambda*nu = c
What is Planck's Law, which relates energy, wavelength, frequency, Planck's constant, and the speed of light? E sub photon = h * nu E sub photon = h (c/lambda)
What is the de Broglie equation, which relates wavelength to Planck's constant, mass, and velocity? lambda = (h)/(m*v)
What is the equation for En? En = -2.18 * 10^-18 J * (1/(n^(2)))
As the electromagnetic spectrum goes from Gamma Rays to radio waves, what happens to wavelength, energy, and frequency? Wavelength increases from Gamma Rays to radio waves, but energy and frequency increase from radio waves to Gamma Rays.
What is the wavelength range of visible light? 400-700nm
What is the photoelectric effect? When light shines on the surface of a metal, electrons are emitted. However, there is a threshold frequency and no time lag.
The energy of a photon depends only on what? frequency
Light behaves as both ...? waves and particles
Energy is what? quantized
The Heisenberg Uncertainty Principle says what? It is impossible to know both the position and the momentum (mv) of a particle simultaneously.
What does a 1s orbital look like? a sphere
What does a 2p orbital look like? a bow-tie, with the sub letter indicating which axes the sides of the bow-tie are on.
What does a 3d sub x^(2)-y^(2) orbital look like? a four-leaf clover with its leaves on the axes
What does a 3d sub xy, xz, or or yz orbital look like? a four-leaf clover with its leaves between the axes, in the plane of the indicated axes
What does a 3d sub z^(2) orbital look like? a 2p sub y orbital with a donut around the origin
What is the principal quantum number? n; describes the shell of the electron; n = 1, 2 , 3, ...
What is the angular momentum quantum number? (also called the azimuthal quantum number) l; describes the shape of the orbital; l = 0 (s), 1 (p), 2 (d), 3 (f)...
What is the magnetic quantum number? m sub l; describes the orientation of the orbital; m sub l = -l to l.
What is the spin quantum number? m sub s; describes the "spin" of an electron; m sub s = -1/2 or +1/2
Created by: 2nenogirl
 

 



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