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

chem 8th grade

QuestionAnswer
atomic number the number of protons in the nucleus of an atom
electron cloud a region inside an atom where electrons are like;y to be found
Dimitri Mendeleev created the first periodic table
John Dalton believed "atoms cannot be created or destroyed" #all elements made of atoms which combine to form compounds"
therm unit of heat
plastic term used to describe a material that doesn't return to its original shape after stretching
adhesive able to stick
endo internal within
exo giving out
periodic table table of the elements arranged according to their atomic number
family/group vertical column of elements on the periodic table
period horizontal row of elements on the periodic table
chemical property a property of matter that describes a substance based on its ability to change into a new substance with different properties
physical property a property of matter that can be observed or measured without changing the identity of the matter
metals elements that are shiny,ductile,malleable andare good conductors of thermal energy and electrical current
non-metals elements that are not shiny are poor conductors of thermal energy and electrical current
metalloids elements that have properties of both metals and non-metals: sometimes known as semi-conductors
insulators materials that reduce or inhibit the transfer of thermal energy and electrical current
conductors materials that conduct thermal energy and electric current well
ions a charged particle that forms during chemical changes when one or more valence electrons transfer from one atom to another
Created by: agarbutt
 

 



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