Electron orbital

• An atomic orbital
  Atomic orbital
  
  An atomic orbital is a mathematical function that describes the wave-like behavior of an electron in an atom. This function can be used to calculate the probability of finding any electron of an atom in any specific region around the atom's nucleus....
  , describing the behaviour of an electron in an atom
• A molecular orbital
  Molecular orbital
  
  In chemistry, a molecular orbital is a mathematical function that describes the wave-like behavior of an electron in a molecule. This function can be used to calculate chemical and physical properties such as the probability of finding an electron in any specific region....
  , describing the behaviour of an electron in a molecule
• An electron cloud
  Electron cloud
  
  Electron cloud is not a term used by the Nobel Prize laureate and acclaimed educator Richard Feynman in The Feynman Lectures on Physics for discussing "exactly what is an electron?"....
  , intended as in aid in visualising the probability density of an electron

See also

• Electron configuration
  Electron configuration
  
  In atomic physics and quantum chemistry, electron configuration is the arrangement of electrons in an atom, molecule, or other physical structure....
  , the arrangement of electrons in structures such as atoms or moleclules

• Orbital hybridization, a combining of atomic orbitals to form an equal number of hybrid orbitals when forming certain molecule
  Molecule
  
  In chemistry, a molecule is defined as a sufficiently stable, electric charge neutral group of at least two atoms in a definite arrangement held together by very strong chemical bonds....
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