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

PT Patterns

groups, models, valence

halogens elements found in Group 17 of the periodic table; these are very reactive salt forming nonmetals
noble gases elements found in Group 18 of the periodic table; they are very non-reactive
alkali metals elements found in Group 1 of the periodic table; these are the most reactive metals
alkaline earth metals elements found in Group 2 of the periodic table; these are the second most reactive metals
valence electrons the electrons that are in the highest energy level of an atom; these electrons are involved in chemical reactions
Lewis structure a representation of the valence electrons of an atom using dots around the chemical symbol; the number of dots equals the number of valence electrons in the atom; also known as dot structures, dot diagrams, or electron dot diagrams
Bohr model an atomic model which shows electrons moving around the nucleus of an atom in 'orbits'
octet rule a chemical rule that states that atoms tend to gain, lose, or share electrons in such a way that they each have eight electrons in their valence shells, making them stable and non-reactive
energy level the possible locations around an atom where electrons with specific energy values may be found; also known as electron shells or energy shells
chemical bond the force that holds atoms together to form molecules; results from the rearrangement of electrons between atoms
Created by: Rita.Rogers