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A molecule is an electrically neutral group of two or more atoms held together by chemical bonds.


  • Deep in the sea
    all molecules repeat
    the patterns of one another
    till complex new ones are formed.

    They make others like themselves
    and a new dance starts.

    Growing in size and complexity
    living things
    masses of atoms
    DNA, protein
    dancing a pattern ever more intricate.

  • Such a shared-electron bond, first proposed in 1916 by G. N. Lewis, is called a covalent bond. The neutral collection of atoms held together by covalent bonds is called a molecule.
    • John McMurry, Organic Chemistry 8th ed. (2012), Ch. 1 : Structure and Bonding
  • A diatomic molecule is a molecule with one atom too many.

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