Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

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.
Didn't know it?
click below
Knew it?
click below
Don't Know
Remaining cards (0)
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

gallo chap 17 vocab

atom the smallest particles of an element that can be identified with that element. Consists of protons and neutrons in a nucleus surrounded by electrons.
element a substance made of only one kind of atom.
Brownian motion the peretual random movement of microscope particles suspended in a fluid medium.
molecule the smallest particle of a substance consisting of two or more atoms of the same or different elements bonded together.
compound a chemical substance made of atoms of two or more different elements combined in a fixed proportion.
chemical formula a description that uses numbers and symbols of elements to describe the proportions of elements in a compound or reaction.
nucleus the positively charged center of an atom, which contains protons and neutrons and had almost all the mass of the entire atom only a tiny fraction of the volume.
nucleons the principal buliding block of the nucleus; a neutron or a proton.
neutrons an electrically neutral particle that is one of the two kinds of particles that compose an atomic nucleus.
protons a positively charged praticle that is one of the two kinds of particles found in the nucleus of an atom.
atomic number number of protons in the nucleus of an atom
ion an atom (or a group of atoms bound together) with a net electric charge, which is due to the loss or gain of electrons.
shell model of the atom a model in which the electrons of an atom are pictured as grouped in concentric shells around the nucleus.
periodic table a chart that lists elements by atomic number and by electron arangements, so that elements with similar chemical properties are in the same column.
plasma a fourth phase of matter in addition to solid. liguid, and gas. In the plasma phase, which exsists mainly at high temperature, matter consists of positively charged ions and free electrons.
Created by: GalloRM
Popular Physics sets




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:
restart all cards