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

2.1 Terms

TermDefinition
Matter anything that occupies space and has mass
Mass the quantity of matter an object has
Element substances that cannot be broken down chemically into simpler kinds of matter
atom the simplest particle of an element that retains all of the properties of life
Nucleus makes up the bulk of the mass of an atom(protrons+neutrons)
proton a stable subatomic particle occurring in all atomic nuclei with a positive electric charge
neutron a subatomic particle without a charge
atomic number number of protons in an element
mass number equal to the total number of protons and neutrons
electron negatively charged particles
orbital three dimensional region around the nucleus that indicates the probable location of an eletron
isotope atoms of the same element that have a different number of neutrons
compound made up of the atoms of two or more elements in fixed proportions
chemical bond the active forces that hold atoms together
covalent bond forms when two atoms share one or more pair of electrons
molecule simplest part of a substance
ion an atom or molecule in witch the number of electrons is not equal to the number of protons
ionic bond because positive and negative electric charges attract each other, the sodium ion and the chloride ion attract each other. this attraction is called _________
Created by: Addaleigh
Popular Biology 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