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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 Perch (perch) = 5.0292 meters.| 20 Bohr Radius | to common length units |
|---|---|
| 20 Bohr | = 1.058354E-9 meters (m) |
| 20 Bohr | = 1.058354E-12 kilometers (km) |
| 20 Bohr | = 1.058354E-7 centimeters (cm) |
| 20 Bohr | = 3.4722900262467E-9 feet (ft) |
| 20 Bohr | = 4.1667480314961E-8 inches (in) |
| 20 Bohr | = 1.1574300087489E-9 yards (yd) |
| 20 Bohr | = 6.5763068678915E-13 miles (mi) |
| 20 Bohr | = 1.1186491914174E-25 light years (ly) |
| 20 Bohr | = 4.0000786141831E-6 pixels (PX) |
| 20 Bohr | = 6.6147125E+25 planck length (pl) |