Save
Upgrade to remove ads
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

QuestionAnswer
what is an isotope? atom of same element wit different number of neutrons
what is mass number? number of protons + neutrons
what is atomic number number of protons
what charge do protons have? positive
what charge does electrons have? negative
what charge do neutrons have? none
which one of John Daltons conclusions still hold up modern day? atoms of different elements combine in whole number ratios to form compounds
what does amu stand for? atomic mass unit
what is the definition of law? describes what happens in nature, usually mathematically
what is the definition of theory? well tested explanation
what is the law of conservation of mass? matter cannot be created or unmade
what is the law of definite proportions? chemical compounds contain elements in exact same proportion
what is an atom? smallest unit of element that retails property of that element
what are the 2 regions of an atom? nucleus and electron cloud
Created by: user-2058349
 

 



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