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 5 Vocab

TermDefinition
electromagnetic radiation A form of energy exhibiting wavelike behavior as it travels through space.
wavelength The shortest distance between equivalent points on a continuous wave.
frequency The number of waves that pass a given point per second.
amplitude the height of a wav from the origin to a crest, or from the origin to a trough
electromagnetic spectrum Includes all forms of electromagnetic radiation.
quantum The minimum amount of energy that can be gained or lost by an atom.
planck's constant where J is the symbol for the joule.
photoelectric effect A phenomenon in which photoelectrons are emitted form a metal's surface when light of a certain frequency shines on the surface.
photon A particle of electromagnetic radiation with no mass that carries a quantum of energy.
atomic emission spectrum A set of frequencies of electromagnetic waves given off by atoms of an element; consists of a series of fine lines of individual colors.
Ground state The lowest allowable energy state of an atom.
quantum number The number assigned to each orbit of an electron.
de broglie equation Predicts that all moving particles have wave characteristics and relates each particles wavelength to its frequency, its mass, and plank's constant.
heisenberg uncertainty principle State that it is not possible to know precisely both the velocity and the position of a particle at the same time.
quantum mechanical model of the atom An atomic model in which electrons are treated as waves; also called the wave mechanical model of the atom.
atomic orbital A three dimensional region around the nucleus of an atom that describes an electron's probable location.
principal quantum number Assigned by the quantum mechanical model to indicate the relative sizes and energies of atomic orbitals.
principal energy level The major energy levels of an atom.
energy sublevel The energy levels contained within a principal energy level.
electron configuation The arrangement of electrons in an atom, which is prescribed by three rules the aufbau principle, the Pauli exclusion principle, and Hund's rule.
aufbau principle States that each electron occupies the lowest energy orbital available.
pauli exclusion principle States that a maximum of two electrons can occupy a single atomic orbital but only if the electrons have opposite spins.
hund's rule States that single electrons with the same spin must occupy each equal-energy orbital before additional electrons with opposite spins can occupy the same orbitals
valence electron The electron in an atom's outer most orbitals.
electron-dot structure Consists of an element's symbol, representing the atomic nucleus and inner-level electrons, that is surrounded by dots, representing the atom's valence electrons.
Created by: reaginicfiddle4
 

 



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