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

Atoms and PT

Reimer Atoms and Periodic Table Study Guide - 8th

QuestionAnswer
matter anything that has mass and takes up space
atom small particle that makes up most types of matter and is made up of smaller particles called protons, neutrons and electrons
law of conservation of matter states that matter is neither created nor destroyed, only changed in form
electron negatively charged particle only changed in form
nucleus central part of the atom
proton positively charged, heavy particle contained in the nucleus of all atoms
neutron neutral particle that is present in the nucleus of all atoms (has the same mass as the proton)
element a substance that can not be broken down into smaller substances
electron cloud region surrounding the nucleus of an atom
atomic number number of protons in the nucleus of an atom; whole number that tells how many protons are in the nucleus of each atom of an element
atomic mass number of neutrons plus the number of protons in the nucleus of an atom
isotope atoms of the same element that have different numbers of neutrons in the nuclei
radioactive decay release of nuclear particles and energy from unstable atomic nuclei
half-life time needed for one-half the mass of a sample of a radioactive isotope to decay; can vary from fractions of a second to billions of years
periodic table a chart in chemistry that lists the elements in order on increasing atomic number
period a horizontal row on the periodic table
group (or family) a vertical column on the periodic table
metal element that is a good conductor of electricity and heat, is usually a solid at room temperature and usually is shiny, ductile, and malleable
non-metal element that is a poor conductor of heat and electricity and may be a gas or a brittle solid at room temperature
metalloid element that shares some properties with metals and nonmetals
Created by: rcorippo
Popular Science 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