Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
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. Your email address is only used to allow you to reset your password. See 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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
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

1 Unit Atoms

Atoms vocab

TermDefinition
proton the part of the atom with a positive charge, located in then nucleus
neutron the part of the atom that has no charge, located in the nucleus
electron the negatively charged part of the atom, located outside the nucleus
nucleus the center area of an atom
ion an atom in which the positive charges (protons) do NOT equal the negative charges (electrons)
neutral atom an atom in which the positive charges (protons) equal the negative charges (electrons)
ground state the state of an atom before energy is applied to it
atom the smallest unit of matter
shells layers outside the nucleus where the electrons are located
valence electrons electrons in the outermost shell
atomic number the smaller of the two numbers on the periodic table, tells you the number of protons
atomic mass (of a single atom) the number of protons plus the number of neutrons for that atom
average atomic mass the weighted average of all isotopes of that element
isotope atoms of the same element (same number of protons) with different number of neutrons
element symbol a 1 or 2 letter abbreviation for an element's name
periodic table a list of all the known elements, arranged in order of atomic number
period a row on the periodic table: there are 7
group a column on the periodic table: there are 18
alkali metals the group of elements located below Hydrogen on the periodic table
alkaline earth metals the group of elements in the second column of the periodic table
transition metals the elements in the center of the periodic table ( groups 3-12)
halogens the elements in the second to last group of the periodic table (group 17)
noble gases the elements in the last column of the periodic table: they are unreactive due to their pattern of electrons
excited state the state of an atom when energy has been applied and one or more electrons have moved further from the nucleus
spectral lines a pattern of lines given off by the movement of electrons in an atom. Each element has a unique pattern, like a fingerprint.
Created by: kost
Popular Chemistry sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards