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The Bohr radius (a0 or rBohr) is a physical constant, approximately equal to the most probable distance between the proton and electron in a hydrogen atom in its ground state. It is named after Niels Bohr, due to its role in the Bohr model of an atom. Its value is 5.2917721067×10^−11 m.
The palm may be either one of two obsolete non-SI units of measurement of length.
In English usage the palm, or small palm, also called handbreadth or handsbreadth, was ..more definition+
In relation to the base unit of [length] => (meters), 1 Bohr Radius (Bohr) is equal to 5.29177E-11 meters, while 1 Palms (palm) = 0.0762 meters.| 250000 Bohr Radius | to common length units |
|---|---|
| 250000 Bohr | = 1.3229425E-5 meters (m) |
| 250000 Bohr | = 1.3229425E-8 kilometers (km) |
| 250000 Bohr | = 0.0013229425 centimeters (cm) |
| 250000 Bohr | = 4.3403625328084E-5 feet (ft) |
| 250000 Bohr | = 0.00052084350393701 inches (in) |
| 250000 Bohr | = 1.4467875109361E-5 yards (yd) |
| 250000 Bohr | = 8.2203835848644E-9 miles (mi) |
| 250000 Bohr | = 1.3983114892717E-21 light years (ly) |
| 250000 Bohr | = 0.050000982677289 pixels (PX) |
| 250000 Bohr | = 8.268390625E+29 planck length (pl) |