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.

Remove ads
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

Foreman/Kerley wk3,4

ions, valence electrons, reactivity

atomic number the number of protons in the nucleus of one atom of the element; identifies the element
energy levels the "layers" around the nucleus where electrons may be found; a state in which matter can exist with a certain amount of energy and distinct from other states with different amounts of energy.
valence electrons the electrons in the outermost energy level of an atom -- they influence how an element will react with other substances
reactivity rate (speed) at which a chemical substance tends to undergo a chemical reaction; significantly influenced by valence electrons of the reacting substances
outermost energy level determines the chemical properties of the atom because of the "rule of 8"; also called the valence shell
net charge the sum of negative and positive charges within the atom; determines the overall charge of the atom
ion an atom after a loss or gain of electrons; it now has an overall net charge (positive or negative)
metal most elements; typically solid, shiny, malleable, and good conductors of heat and electricity
nonmetal elements typically not shiny, usually a gas or brittle solid, not malleable, and poor conductors of heat and electricity
proton a positively-charged subatomic particle of the nucleus of an atom that contributes to the mass of the atom
electron a negatively-charged subatomic particle that orbits the atomic nucleus
cation an atom with a positive charge; it has lost one or more electrons
anion an atom with a negative charge; it has gained one or more electrons
Created by: foremanh71