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10 Cards in this Set

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  • Back

Big bang model

Most prevailing model of the origin of the universe

13.7Billion

About how many years is the universe

Ralph Alpher


Dr. Hans A. Bethe


George Gamow

Who published the paper entitled "The Origin of Chemical elements"

Primordial nucleosynthesis

Other term for BBN

Hydrogen


Deuterium


Helium isotopes


Lithium isotopes


Trace amounts of beryllium

BBN is reponsible for the formation of

10seconds to about 20mins

The formation of BBN sysnthesis lasted only for how many seconds

Nuclear fusion


Nuclear Fission

Two types of nuclear reaction

Nuclear fission

Spliting of nuclei

Nuclear fusion

Combining of two or more nuclei

75%


25%

Percentage of hydrogen and helium