Encyclopedia > Hartree energy

  Article Content

Hartree energy

The Hartree energy (symbol Eh) is a physical constant used as atomic unit of energy, named after physicist Douglas Hartree[?].

It has a value of twice the binding energy of the electron in the ground state of the hydrogen atom.

<math>E_h = {\hbar^2 \over {m_e a^2_0}}</math>
= 4.359 743 81(34) x 10-18J

where:

<math>\hbar</math> is the Dirac's constant,
<math>m_e</math> is the electron rest mass
<math>a_0</math> is the Bohr radius



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
Nikolai Gogol

... Russia. The photo is of his sculpted bust marking his grave. External Links e-texts of some of Nikolai Vasilievich Gogol's works: The Cloak ...