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

midterm

study for midterm

TermDefinition
protons positive charge
electron negative charge
neutron neutral charge
Isotope An atom of the same element that differ in the number of neutrons. (masses vary)
Ion Atoms that gain or lose electrons.
Valence Electrons Electrons that are located in an atoms highest energy level. They determine physical and chemical properties of an element.
Electrovalent A type of bond formed between oppositely charged ions in a chemical compound.
Covalent Form when atoms share electrons.
fundamental unit A unit adopted for measurement of a base quantity. (basic measurement)
derived unit units formed from other units.
exothermic gives off energy
endothermic takes in energy
metals give electrons
non-metals take electrons
pure substance sample of matter with the same composition and properties whatever its source
heterogeneous composition and properties are not uniform
homogeneous composition and properties are uniform throughout the mixture
matter anything that has mass and takes up volume
atom basic unit of matter
scientific notation uses powers of 10 to write very large or very small numbers in shorter form.
centi 1g=100cg
mili 1g=1000mg
micro 1g=100mg
kilo 1g=1000kg
Created by: shelleyw
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