Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
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
Normal Size Small Size show me how
radioactivity!
chapter 16
| Question | Answer |
|---|---|
| radioactivity | the process by which an unstable neclues give off nuclear radiation |
| mass number | the sum of the numbers of protons and nuetrons in the nucleus of an atom |
| radioactive decay | same thing as radioactivity |
| alpha decay | the release of an alpha particle from the nucleus |
| alpha particle | made up of 2 protons and 2 neutrons |
| beta decay | the release of a beta particle from a necleus |
| beta particle | electron or positron |
| isotopes | atoms that have the same number of protons as other atoms of the same element do but that have different number of nuetrons |
| gamma rays | energy given off during alpha and beta decay in the form of light that is very high energy |
| gamma decay | the release of gamma rays from a nuclues |
| radiation sickness | a single large exposure to radiation side effects: fatigue, hair loss, and and loss of appetite |
| half-life | the time needed for half of a sample of a radioactive substanse to under go radioactivve decay |
| nuclear fission | the splitting of the nucleus of a large atom into two or more fragments; releases additional neutrons and energy |
| nuclear chain reaction | a continuous series of nuclear fission reactions |
| nuclear fussion | the combination of the nuclei of small atoms to form a larger nucleus; releases energy |
Created by:
mj101
Popular Physical Science sets