| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 1,811,788,211 visitors served. |
|
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
f-sum rule |
0.07 sec. |
|
f-sum rule [′ef ‚səm ‚rül] (atomic physics) The rule that the sum of thefvalues (or oscillator strengths) of absorption transitions of an atom in a given state, minus the sum of thefvalues of the emission transitions in that state, equals the number of electrons which take part in these transitions. Also known as Thomas-Reiche-Kuhn sum rule. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
|
| ? Mentioned in |
|---|
| Encyclopedia |
| Free Tools: |
For surfers:
Free toolbar & extensions |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup | Partner with us |
|---|