Nucleosynthesis and BigBang Theory

• Nucleosynthesis


  The creation of new atomic nuclei, the centers of atoms that are made up of protons and neutrons
• Nucleosynthesis


  Occurs in the first few minutes of the Big Bang
• Big Bang Theory


  Proposed by Georges Lemaitre
• In 1980, the name "primeval atom" was changed to "Big Bang"
• Aleksandr Friedman


  Formulated the governing equation of the Big Bang Theory
• The Big Bang Theory was officially recognized

  In 1940
• Big Bang


  • Expansion of the universe; cooled
  • Happened 14 billion years ago
  • Started from a hot, dense mass about 1 cm in diameter that experienced a huge explosion
• Within the first second after the Big Bang explosion

  Subatomic particles were formed; protons, neutrons, electrons
• Few minutes after the Big Bang

  Fusion of protons and neutrons formed deuterium, which led to the formation of the isotope of hydrogen (H)
• After the Big Bang, the universe was 75% hydrogen, 25% helium, with traces of lithium by mass
• Bigbang b
• It is the process through where the light elements Formed

  BigBang Nucleosynthesis