Derived Atomic Units
Below are given a few derived units. Some of them have proper names and symbols assigned, as indicated in the table. kB is Boltzmann constant.
| Dimension | Name | Symbol | Expression | Value in SI units | Value in more common units |
|---|---|---|---|---|---|
| length | Bohr radius | 5.2917720859(36)×10−11 m | 0.052918 nm=0.52918 Å | ||
| energy | Hartree energy | 4.35974417(75)×10−18 J | 27.211 eV=627.509 kcal·mol−1 | ||
| time | 2.418884326505(16)×10−17 s | ||||
| velocity | 2.1876912633(73)×106 m·s−1 | ||||
| force | 8.2387225(14)×10−8 N | 82.387 nN=51.421 eV·Å−1 | |||
| temperature | 3.1577464(55)×105 K | ||||
| pressure | 2.9421912(19)×1013 Pa | ||||
| electric field | 5.14220652(11)×1011 V·m−1 | 5.14220652(11) GV·cm−1=51.4220652(11) V·Å−1 |
Read more about this topic: Atomic Units
Famous quotes containing the words derived, atomic and/or units:
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—Nelson Goodman (b. 1906)
“The pace of science forces the pace of technique. Theoretical physics forces atomic energy on us; the successful production of the fission bomb forces upon us the manufacture of the hydrogen bomb. We do not choose our problems, we do not choose our products; we are pushed, we are forced—by what? By a system which has no purpose and goal transcending it, and which makes man its appendix.”
—Erich Fromm (1900–1980)
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—Willa Cather (1873–1947)