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

Chapter 4 Vocabulary

Vocabulary from chapter 4 of textbook

QuestionAnswer
Cathode Ray Ray of radiation that originates from the cathode end of the tube.
Electron negatively charged subatomic particle.
Nucleus small dense and centrally located within the atom. Contains all the atom's positive charge and virtually all of its mass.
Proton positively charged subatomic particle.
Neutron neutrally charged subatomic particle.
Table O illustrates the symbols, charges and masses of subatomic particles and nuclear emanations.
Atomic Number The number of protons in the nucleus of an atom. Identifies the atom.
Isotope Atoms with the same number of protons (atomic number) but different number of neutrons (mass number)
Mass Number The sum of the protons and the neutrons in the nucleus of an atom.
AMU Atomic Mass Unit - 1/12 the mass of a carbon-12 atom.
Atomic Mass The weighted average mass of all naturally occurring isotopes of an element.
Nucleons The subatomic particles found in the nucleus (protons and neutrons).
Nuclear Reactions A reaction that involves a change in an atom's nucleus.
Radioactivity A process occurring when a substance spontaneously emits radiation.
Radiation The rays and/or particles emitted by a radioactive material.
Radioactive Decay Occurs when unstable nuclei lose energy by emitting radiation in a spontaneous process.
Alpha Radiation Radiation deflected towards a negative plate.
Alpha Particle A particle with 2 protons and 2 neutrons.
Nuclear Equation illustrates the mass number and atomic number for each particle involved.
Beta Radiation Radiation deflected towards a positive plate.
Beta Particle A particle with negligible mass and a negative charge.
Gamma Ray High energy radiation that possess no mass or charge.
Created by: Silvs216
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