EARTH SCIENCE - Big Bang Theory

Cosmology

Branch of Astronomy that involves the origin and evolution of the universe, from the Big Bang to today and on into the future

Big Bang Nucleosynthesis

• Formed the Light Elements (H, He, Li)

• Process by which the nuclei of light elements such as Hydrogen, Helium and Lithium were formed in the early universe.

Stellar Formation and Evolution

• Formed the elements from Be to Fe

• Process by which a star changes over the course of its lifetime and how it can lead to the creation of a new star

Stellar Explosion or Supernova

• Formed the Elements heavier than Fe

• A powerful and luminous explosion of a star

Big Bang Theory

Explains how the elements were initially formed the formation of different elements involved many nuclear reactions, including fusions, fission and radioactive decay

Singularities

Region of space where the density of matter becomes infinite

Inflation

Exponential expansion of space in the very early universe

Nucleosynthesis

the formation of new atomic nuclei or elements

Recombination

The epoch during which charged electrons and protons first became bound to form electrically neutral hydrogen atoms

Red Shift

The wavelength of the light is stretched; A key concept for Astronomers

Cosmic Microwave Background (CMB)

Radiation that fills all the space in the observable universe

Singularities, Inflation, Nucleosynthesis, Recombination, Red Shift, Cosmic Microwave Background (CMB)

STAGES OF THE BIG BANG THEORY

Atomic Number (Z)

Number of Protons

Atomic Weight (A)

Total number of Protons and Neutrons

Isotope

Atoms with the same atomic number but different atomic masses

Protium, Deuterium, Tritium

THREE ISOTOPES OF HYDROGEN

Ions

Positively or Negatively charged particles