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The Periodic Trends

There are four trends found in the periodic table: electronegativity, atomic radii, electron affinity and ionization energy.


  • Electronegativity - EN
    Electronegativity is the measure of an atoms ability to attract electrons.
  • Ionization Energy
    Ionization energy is the minimum amount of energy required to remove an electron from an atom.
  • Atomic Radius
    Atomic radius is one half the distance between the nuclei of two atoms of the same element.