Encyclopedia > Bohr radius

  Article Content

Bohr radius

In Bohr's model of the hydrogen atom, the Bohr radius (<math>a_0</math>) is the radius of the lowest energy orbit:

<math>a_0 = {{4\pi\epsilon_0\hbar^2}\over{m_e e^2}}</math>

where:

<math>\epsilon_0</math> is the permittivity of vacuum

<math>\hbar</math> is the Planck's constant

<math>m_e</math> is the electron rest mass
and
<math>e</math> is the elementary charge

It has a value of 5.29189379×10-11 m, or about half an angstrom.



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
Eurofighter

... does incorporate many low-observable features resulting in a much smaller radar cross-section than earlier fighters. It is also capable of sustained supersonic cruise ...

 
 
 
This page was created in 22.8 ms