Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


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. Your email address is only used to allow you to reset your password. See 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
edit
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

Science notes unit 1

TermDefinition
matter anything without volume and mass
element type of atom
compounds two or more atoms chemically combined
energy the ability to more or change matter
kinetic energy movement
potential energy position (potential for something to happen)
thermal energy heat
chemical energy reaction
chemical new substances with new chemical properties created
physical change in properties affecting appearance or form
bohr model of the atom dense nucleus of protons and neutrons, electrons orbit in distinct energy levels (shells)
atomic # number of protons in the nucleus determines the element
mass number mass of an atoms nucleus, combined number of protons and neutrons
isotope atoms of the same element and atomic # with different mass numbers
isobar different elements and atomic numbers with the same mass number
atomic emission the process of electrons absorbing and releasing energy in teh form of light at specific wavelengths
ground state default, lowest energy state of an atom electrons
excited state occurs when an electron gains energy and jumps up
emission spectrum lines excited electron returns to the ground state, releasing emitting energy as light
electromagnetic radiation described as a wave with a set wavelength and frequency
photon electromagnetic radiation described as a particle with a set energy
wavelength distance from peak to peak
frequency amount of peaks that pass per second
speed distance traveled per second
valence electrons the number of electrons in the highest energy level are the outermost electrons of an atom
core electrons all other electrons
noble gas configuration a method of shortening electron configuration by starting from after the most recent noble gas instead of beginning at 1s
isoelectronic two atoms are isoelectronic to each other when they have the same electron configuration
Created by: stargirl123
Popular Chemistry sets

 

 



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