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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 Perch (perch) is equal to 5.0292 meters, while 1 Bohr Radius (Bohr) = 5.29177E-11 meters.| 21850 Perch | to common length units |
|---|---|
| 21850 perch | = 109888.02 meters (m) |
| 21850 perch | = 109.88802 kilometers (km) |
| 21850 perch | = 10988802 centimeters (cm) |
| 21850 perch | = 360525 feet (ft) |
| 21850 perch | = 4326300 inches (in) |
| 21850 perch | = 120175 yards (yd) |
| 21850 perch | = 68.28125 miles (mi) |
| 21850 perch | = 1.1614841982877E-11 light years (ly) |
| 21850 perch | = 415324852.32439 pixels (PX) |
| 21850 perch | = 6.86800125E+39 planck length (pl) |