Atomic structure fix
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Atomic structure fix

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Atomic structure fix Atomic structure fix Presentation Transcript

  • ATOMIC STRUCTURE
  • WHAT IS AN ATOM?• Atom: the smallest unit of matter that retains the identity of the substance
  • ATOMIC STRUCTURE• Atoms are composed of 2 regions: • Nucleus: the center of the atom that contains the mass of the atom • Electron cloud: region that surrounds the nucleus that contains most of the space o in the atom View slide
  • WHAT’S IN THE NUCLEUS?• The nucleus contains 2 of the 3 subatomic particles: • Protons: positively charged subatomic particles • Neutrons: neutrally charged subatomic particles View slide
  • WHAT’S IN THE ELECTRON CLOUD?• The 3rd subatomic particle resides outside of the nucleus in the electron cloud • Electron: the subatomic particle with a negative charge and relatively no mass
  • HOW DO THESE PARTICLES INTERACT?• Protons and neutrons live compacted in the tiny positively charged nucleus accounting for most of the mass of the atom• The negatively charged electrons are small and have a relatively small mass but occupy a large volume of space outside the nucleus
  • BOHR MODEL
  • 8 Electrons
  • 8 Electrons
  • • Atoms will always be neutral.• Will always have the same number of electrons and protons to remain neutral.• Neutrons can vary but will never affect the atoms electrical charge.
  • APE• These 3 will always be equal in an atom• A Atomic number• P Protons• E Electrons