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25 Cards in this Set
- Front
- Back
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Explain the Origin of elements hydrogen through iron |
It is fused in stars to form helium and then to form into heavier elements |
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what is the lifespan of the sun? |
Nebula to yellow dwarf to red giant to supernova to white dwarf to black hole or neutron star |
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Definition of nuclear fusion |
When 2 smaller nuclei form one |
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Definition of nuclear Fission |
A nucleus splits into 2 |
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What fusion is used in power plants? |
Fission |
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What fusion is used in the sun |
Fusion |
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What fusion is used in an atomic bomb? |
Fission |
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What are the 4 fundamental forces of nature? |
Gravity Electromagnetic Strong Force Weak Force
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What is a strong force? |
Holds the nucleus together
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What is a weak force? |
Radioactive Decay |
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What is an isotope? |
Different number of neutrons than protons |
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How do you find the mass number? |
Neutrons plus protons |
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Where is the belt of stability of a graph? |
The shaded region |
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When does an isotope undergo Alpha emission? |
Nuclei with 84 or more protons are radioactive |
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When does an isotope undergo Beta emission? |
Nuclei with 83 or less protons that falls above the band is beta emission |
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When does an isotope undergo Positron emission? |
Nuclei with 83 or less protons that falls below the band is positron emission |
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How do you find the neutrons in a prediction? |
Mass minus protons |
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How do you find the mass? |
Protons plus neutrons |
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What is the difference between the name of the isotope vs. atomic notation |
Name of the isotope is- Name of element-Mass # Atomic Notation- Mass number SYM Atomic # BOL
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What are the hints for Alpha Decay? |
X = 4He + X 2
Product side |
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What are the hints forBeta Decay? |
X = 0E- + X -1
Product side |
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What are the hints for Gamma Emission? |
X = 0Y + X 0
Product side |
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What are the hints for Positron Emission? |
X = 0E+ + X 1
Product Side |
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What are the hints for Neutron Bombardment? |
1n + X = X 0
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What are the hints for Electron Capture? |
0E- + X = X -1
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