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

ChemReview2

Chemistry Review Chapters 4 & 19

QuestionAnswer
John Dalton Dalton's Atomic Theory
Dalton's Atomic Theory All elements are made of tiny indivivisible particles called atoms. All atoms of a given element are identical, but atoms of one element differ from atoms of other elements. Atoms can be neither created or destroyed during a chemical reaction.
Law of the Conservation of Mass Antoine Lavoisier
The Law of Definite Proportions Joseph Proust
The Law of Multiple Proportions John Dalton
Aristotle Matter is continuous
Democritus 1st to propose the existance of atoms
Albert Crooke Inventor of the Cathode Ray Tube (CRT)
J.J. Thompson Modified the Cathode Ray Tube and made many experiments using cathode rays that Crooke had invented.
Plum Pudding Model of the Atom Formulated by J.J. Thompson
Eugene Goldstein Discovered Canal Rays. Also modified the CRT and demonstrated that a positive charges were left behind. This led him to discover the CATION.
Robert Milliken Measured the charge of an electron.
Henri Bequerel Discovered Radioactivity
Marie Curie discovered Radium (Ra) and Polonium (Po)
William Roentgen discovered X-Rays
Ernest Rutherford Conducted the "Gold Foil Experiment"
Who found these things? 1. Discovered the nucleus. 2. The nucleus has a positive charge. 3. The nucleus contains the majority of the mass of the atom. 4. The atom is mostly empty space. Ernest Rutherford
James Chadwick Discovered the neutron
Geiger Counter a device used to measure radioactivity
Scintillation Counter another device used to measure radioactivity
Badges Yet a third device to measure radioactivity
Diatomic/Polytomic Elements H (2), O (2), N (2), F (2), Cl (2), Br (2), I (2), S (8), P (4)
Allotropes Same element, different structural formula. Example: O(3) = Ozone - - derived from the diatomic Oxygen
Created by: GAntonini
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