Low-Level

Semi-Conductor Technic

Bohr’s Atom model

  • Atoms consist of protons, neutrons and electrons.
  • Protons (+) and Electrons (-) exhibit corresponding electric charges
  • In a normal condition, an atom is neutral: same number of negative and positive charges.
  • Electrons move in different shell-like paths around the core.
    • This level is determined by the electron’s energy level.
  • Shells are distinguished by the number of maximal electron capacity
    • K: 2 electrons
    • L, M: 8 electrons
  • Electrons in unsaturated shells are called: Valence Electrons
  • Electrons can move between shells through Absorption and Emission of energy.

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