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Electronic Structure: Shells definitions

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  • Electron Shell
    A grouping of electrons around the nucleus, each associated with a specific energy level and size.
  • Nucleus
    The central part of an atom around which electrons are organized into shells.
  • Energy Level
    A quantized state indicating the potential energy and position of electrons in an atom.
  • Atomic Orbital
    A region within a shell where electrons are likely to be found, increasing in size and energy with higher shells.
  • Period
    A horizontal row in the periodic table, each corresponding to a different electron shell in atoms.
  • Periodic Table
    A dynamic arrangement of elements in rows and columns, reflecting atomic structure and shell numbers.
  • Element
    A substance consisting of atoms, each with a unique number of protons and a specific shell structure.
  • Shell Number
    A whole number, starting from one, representing the sequence of electron shells in an atom.
  • Integer
    A whole number value required for shell numbers, starting at one and theoretically extending to infinity.
  • Potential Energy
    The energy related to the position of electrons within shells around the nucleus.
  • Row
    A sequence in the periodic table that directly corresponds to the number of electron shells in atoms.
  • Discovery
    The process of finding or creating new elements, leading to the expansion of the periodic table and possible shells.
  • Limitation
    A restriction on shell numbers, requiring them to be whole numbers starting from one.
  • Expansion
    The ongoing increase in the number of elements and shells as scientific exploration and technology advance.