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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.
In relation to the base unit of [length] => (meters), 1 Bohr Radius (Bohr) is equal to 5.29177E-11 meters, while 1 Poles (pole) = 5.0292 meters.| 90 Bohr Radius | to common length units |
|---|---|
| 90 Bohr | = 4.762593E-9 meters (m) |
| 90 Bohr | = 4.762593E-12 kilometers (km) |
| 90 Bohr | = 4.762593E-7 centimeters (cm) |
| 90 Bohr | = 1.562530511811E-8 feet (ft) |
| 90 Bohr | = 1.8750366141732E-7 inches (in) |
| 90 Bohr | = 5.2084350393701E-9 yards (yd) |
| 90 Bohr | = 2.9593380905512E-12 miles (mi) |
| 90 Bohr | = 5.0339213613783E-25 light years (ly) |
| 90 Bohr | = 1.8000353763824E-5 pixels (PX) |
| 90 Bohr | = 2.976620625E+26 planck length (pl) |