NUCLEAR PLANTS
DECAY
REACTIONS
POTPOURRI
200
Between water and graphite, which one provides a more stable source for moderating neutrons?
WATER
200
When a helium nucleus is ejected, this is what form of radiation?
ALPHA DECAY
200
If nuclear fission is the splitting of a heavy nucleus to provide energy, then describe nuclear fusion.
COMBINING OF LIGHT NUCLEI
200
Low atomic number elements have the most stable nuclei with this neutron-proton ratio.
1.0
400
When the Chernobyl incident happened, the explosion was similar in size to one caused by...
DYNAMITE
400
If an electron is ejected from a nucleus, causing a neutron to decay into a proton, this is what form of radiation?
BETA DECAY
400
What is the symbol for a beta particle?
0
-1 e
400
Represented by these numbers – 2, 8, 20, 28, 50, and 82
MAGIC NUMBER
600
Name two mixtures that a nuclear power plant containment building is typically made out of.
STEEL & CONCRETE
600
A particle of light firing out from a nucleus, with no overall change in mass, is characteristic of which decay process?
GAMMA DECAY
600
Write the alpha decay equation for radium-226.
600
A nuclear chain reaction will be sustained if this particle both initiates it and then releases more of itself in subsequent reactions.
NEUTRON
800
When uranium is enriched for use in nuclear power generation, what is the typical percentage?
3%
800
What is the heaviest element that has a stable isotope?
LEAD
800
Write the beta decay equation for chlorine-39.
800
Radiation unit that is most commonly associated with measuring human exposure.
REM
1000
Nuclear reactors primarily generate power by performing _____________ nuclear chain reactions.
CONTROLLED
1000
What is the half-life of iodine-131 if, after 24 days, 0.125 grams remains from a 1.00 g starting sample?
8 DAYS
1000
Complete the following equation:
14 14 1
7 N + _____ --> 6 C + 1 H
1
0 n
1000
Ratio of protons to neutrons chart that represents optimal conditions for each element to not decay spontaneously.
BAND OF STABILITY