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

Chemistry Ch.4

Ch.4 matter

TermDefinition
compund is a distinct substance that is composed of the atoms of two or more elements and always contains exactly the same relative masses of those elements
chemical formula the types of atoms and the number of each type in each unit (molecule) of a given compound are conveniently expressed
elements symbol abbreviations of elements
law of constant compsition that a given compound always has the same composition, regardless of where it comes from
electrons negative particles
nuclear atom an atom with a dense center of positive charge around which tiny electrons moved in a space that was otherwise
.proton has the same magnitude (size) of charge as the electron, but its charge is positive
neutron is slightly more massive then a proton. It has no charge
isotopes atoms with the same number of protons but different numbers of neutrons
atomic number number of neutrons and the number of atoms
mass number the sum of the number of neutrons and the number of protons in a given nucleus
periodic table list of elements that increase by atomic number
groups families of elements with similar chemical properties that lie in the same vertical column on the periodic table
alkaline metals first column of elements (group 1)
alkaline earth metals Group 2 elements
halogens group 7 elements
noble gases group 8 elements
transition metals large collection of elements that spans many vertical columns
most elements are metals
physical properties of metals efficient conduction of heat and elctricity malleability ductility a lustrous appearance
malleability can be hammered into thin sheets
ductility can be pulled into wires
lustrous shiny
nonmetals relatively small number of elements that appear in the upper right corner of the periodic table
metalloids elements that show a mixture of metallic and nonmetallic properties
diatomic molecules molecules made up of of two atoms
allotropes different forms of a given element
buckminstrefullerene three allotropes of carbon are the familiar and graphite forms plus a form that has only recently discovered
Created by: madison.w
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