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

Structure of an Atom

atom smallest piece of matter
protons particles with an electrical charge - A positively charged subatomic particle.
neutrons neutral particles with no electrical charge
atomic number causes each element to be unique and different from other elements
periodic Table elements are placed in order by increasing atomic number
electrons a negatively charged subatomic particle.
atomic mass the weighted average mass of the isotopes of that element
nucleus the tiny central core of an atom and is composed of protons and neutrons
mass number the total number of protons and neutrons in an atom
charge on a proton +1
charge on an electron -1
charge of an neutron none
location of protons inside the nucleus
location of electrons outside the nucleus
element an substance that cannot be broken down into other substances by physical or chemical means
amu atomic mass unit
importance of proton determines atom's identity
importance of electron determines reactivity or how atoms interact with each other
importance of neutron holds protons/nucleus together
properties that can be used to compare protons, electrons and neutro charges, mass, and location
the difference between two isotopes of the same element isotopes of an element has the same atomic number but differ in mass because they have different number of neutrons
the three subatomic particles protons, neutrons and electrons
Created by: pevans89