Busy. Please wait.

Forgot Password?

Don't have an account?  Sign up 

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.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

Already a StudyStack user? Log In

Reset Password
Enter the email address associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know (0)
Know (0)
remaining cards (0)
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


atomic number the number of proton in an atom identifies the element
atomic mass sum of the number of proton s and neutrons located in the nucleus and measured in atomic mass units (AMU)
isotope an atom that has a different umber of neutrons than normal, still the same element only heavier
Ion an atom that has gained electrons (becomes positive) or an atom that has lost electrons (becomes negative)
Valence electrons the number of electrons that are in the outside energy level (ring) these determine how the atom reacts with other atoms
Electron Negatively charged particle that exists in an electron cloud formation around an atom’s nucleus.
proton positively charged particle that is in the nucleus of an atom
Neutron electrically neutral particle that has the same mass as a proton and is found in an atoms nucleus
electron cloud region surrounding the nucleus of an atom, where electrons are found
nucleus the very tiny and dense region in the center of an atom that contains both protons and neutrons
Created by: rskonieczny98