Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

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.
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.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
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


What is an element? A substance that can't be broken down to a smaller part.
How many naturally occurring elements are there? 92
What is an atom? The smallest part of an element.
Atomic number The amount of protons in an element.
Isotopes When atoms have the same atomic number but different mass number.
First energy level has one spherical s orbital
second energy level max 8 electrons, one spherical s orbital
higher energy levels has s and p orbitals, more complex shaped orbitals
Chemical bonds The attraction, sharing, or transfer of outer shell electrons from atom to atom
Molecules atoms that have combined chemically
Compound two or more molecules combined
Molecular/chemical formula solves for the number and type of atoms
Created by: shlsha1