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.
Don't know (0)
Remaining cards (0)
Know (0)
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

Chemistry Unit 2 Voc

Unit 2 Chemistry Vocabulary Words & Definitions

TermDefinition
Excited State a state in which an atom has more energy than it does at its ground state
Ground State the lowest energy state of a quantized system
Ionization Energy the energy required to remove an electron from an atom or ion
Electronegativity the ability of an atom in a chemical compound to attract electrons
Electromagnetic Spectrum all of the frequencies or wavelengths of electromagnetic radiation
Avogadro's Number 6.02x1023 the number of atoms or molecules in 1 mole
Electron Affinity the energy change when an electron is acquired by a neutral atom
Mole the SI base unit to measure the amount of the substance
Photon a unit or quantum of light; particle of electromagnetic radiation
Orbital a region in an atom where there is a high probability of finding electrons
Electron Configuration the arrangement of electrons in an atom
Pauli Exclusion Principle the principle that states that two particles of a certain class cannot be in exactly the same energy state
Hund's Rule singly occupied with one electron before any one orbital is doubly occupied, and all electrons in singly occupied orbitals have the same spin; the number of unpaired electrons is the maximum possible and these unpaired electrons bonds between atoms
Created by: ethan.hancock
 

 



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

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

If you've accidentally put the card in the wrong box, just tap 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