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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 Decimeters (dm) = 0.1 meters.| 400 Bohr Radius | to common length units |
|---|---|
| 400 Bohr | = 2.116708E-8 meters (m) |
| 400 Bohr | = 2.116708E-11 kilometers (km) |
| 400 Bohr | = 2.116708E-6 centimeters (cm) |
| 400 Bohr | = 6.9445800524934E-8 feet (ft) |
| 400 Bohr | = 8.3334960629921E-7 inches (in) |
| 400 Bohr | = 2.3148600174978E-8 yards (yd) |
| 400 Bohr | = 1.3152613735783E-11 miles (mi) |
| 400 Bohr | = 2.2372983828348E-24 light years (ly) |
| 400 Bohr | = 8.0001572283663E-5 pixels (PX) |
| 400 Bohr | = 1.3229425E+27 planck length (pl) |