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10 Cards in this Set
- Front
- Back
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Big bang model |
Most prevailing model of the origin of the universe |
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13.7Billion |
About how many years is the universe |
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Ralph Alpher Dr. Hans A. Bethe George Gamow |
Who published the paper entitled "The Origin of Chemical elements" |
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Primordial nucleosynthesis |
Other term for BBN |
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Hydrogen Deuterium Helium isotopes Lithium isotopes Trace amounts of beryllium |
BBN is reponsible for the formation of |
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10seconds to about 20mins |
The formation of BBN sysnthesis lasted only for how many seconds |
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Nuclear fusion Nuclear Fission |
Two types of nuclear reaction |
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Nuclear fission |
Spliting of nuclei |
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Nuclear fusion |
Combining of two or more nuclei |
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75% 25% |
Percentage of hydrogen and helium |
