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 3 CHEM

Chapter 3 chemistry Test

QuestionAnswer
Law of definite Proportions Compound are made of the same elements in the Same properties regardless of size source of sample.
Law of Conservation of Mass Mass cannot be created or destroyed
Law of multiple proportions When two or more elements combine to form two compound the mass of one elements that combines with a given mass of the other is in the ration of small whole numbers
Electron A subatomic particle that has a negative electric charge
Nucleus Dense, central potion of the atom holds all the positive charge
Proton A subatomic particle with a positive charge, found in the nucleus of an atom.
Neutron A subatomic particle that his no charge and is found in the nucleus
Atomic Number the NUMBER OF PROTONS IN THE NUCLEUS OF AN ATOM, the atomic number is the same for all atoms of elements
Mass number The total number of protons and neutrons of the nucleus of an atom
Isotope Same number of protons, but different number of Neutrons
Orbital Regions around a nucleus that correspond to specific energy levels, electrons are likely to be found here.
Electromagnetic Spectrum Distance between two consecutive peaks to trough, light emissions
Ground State Lowest stare of energy
Excited State Highest state of energy
Pauli Exclusion Principle The principal that states that two particles of a certain class cannot be in the exact same energy state
Electron Configuration The atomic number represents the number of protons in an atom which also equals the number of electrons in an atom
Aufbau Principle Electrons fill orbits that have the lowest energy state
Hund's Rule Fill each orbital of an energy level with one electron before putting a second electron in the orbital.
Atomic Mass Mass of atom in measured in atomic Mass units (amu)
Created by: hackett12
 

 



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