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Periodic Table: Main Group Element Charges definitions

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  • Main Group Elements
    Elements in groups 1A, 2A, and 3A to 8A, excluding transition metals, with predictable ion charges.
  • Transition Metals
    Elements in the grayed-out box of the periodic table, often forming multiple positive charges.
  • Noble Gases
    Group 8A elements with a stable electron configuration and zero charge, not gaining or losing electrons.
  • Cation
    Positively charged ion formed when an atom loses electrons, typically metals.
  • Anion
    Negatively charged ion formed when an atom gains electrons, typically nonmetals.
  • Atomic Number
    Value representing the number of protons in an atom's nucleus, equal to temporarily neutral electrons.
  • Electron Configuration
    Arrangement of electrons in an atom, with elements seeking noble gas patterns for stability.
  • Type 1 Metals
    Metals forming only one type of positive charge when becoming ions.
  • Type 2 Metals
    Metals capable of forming more than one type of positive charge as ions.
  • Metalloid
    Element with properties intermediate between metals and nonmetals, complicating charge prediction.
  • Group 1A Charge
    Characteristic +1 charge for elements in this group due to loss of one electron.
  • Group 2A Charge
    Characteristic +2 charge for elements in this group due to loss of two electrons.
  • Group 3A Charge
    Characteristic +3 charge for elements in this group, such as aluminum, due to loss of three electrons.
  • Group 6A Charge
    Characteristic -2 charge for elements in this group due to gain of two electrons.
  • Group 7A Charge
    Characteristic -1 charge for elements in this group due to gain of one electron.