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14 Cards in this Set

  • Front
  • Back
the electrons in the outermost energy level of an atom
valence electrons
Group 1 (1A) elements that have one valence electron
alkali metals
Group 2 (IIA) elements that each have two valence electrons
alkaline-earth metals
reactive elements in Group 17 (VIIA) that have seven valence electrons
a table of the elements arranged by atomic number into vertical columns called families or groups, and horizontal rows called periods
periodic table
a homogeneous mixture of metals
the number and position of electrons in the energy levels of an atom
electron configuration
a vertical column on the periodic table
family (group)
The chemical properties of the elements are periodic functions of their atomic numbers.
Periodic Law
a horizontal row in the periodic table
period (series)
another name for a period in the periodic table
stable elements found in Group 18 (VIIIA) that have eight valence electrons
noble gases
capable of being drawn into wire
another name for a family on the periodic table