Save
Upgrade to remove ads
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

Matter and Energy

Unit 3 Lessons 1-2

TermDefinition
atom the smallest particle into which an element can be divided and still be the same element.
electron negatively charged particles.
nucleus a small, dense center that has a positive charge and is surrounded by moving electrons.
proton positively charged particles in the nucleus.
neutron uncharged particles in the nucleus.
electron cloud an area around the nucleus.
atomic number the number of protons in the nucleus of an atom.
mass number the total number of protons and neutrons in an atom's nucleus.
periodic table an arrangement of the elements in order of their atomic numbers such that elements with similar properties fall in the same column, or group.
chemical symbol an abbreviation for the element's name.
average atomic mass the weighted average of the masses of all the naturally occurring isotopes of that element.
metal elements that are shiny and conduct heat and electricity well.
nonmetal poor conductors of heat and electricity.
metalloid elements that have some properties of metals and some properties of nonmetals.
group each vertical column of elements (from top to bottom) on the periodic table.
period each horizontal row of elements (from left to right) on the periodic table.
Created by: 18kielyc0311
Popular Physical 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