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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 Petameters (Pm) is equal to 1000000000000000 meters, while 1 Bohr Radius (Bohr) = 5.29177E-11 meters.| 8400 Petameters | to common length units |
|---|---|
| 8400 Pm | = 8400000000000000000 meters (m) |
| 8400 Pm | = 8400000000000000 kilometers (km) |
| 8400 Pm | = 8.4E+20 centimeters (cm) |
| 8400 Pm | = 2.755905511811E+19 feet (ft) |
| 8400 Pm | = 3.3070866141732E+20 inches (in) |
| 8400 Pm | = 9.1863517060367E+18 yards (yd) |
| 8400 Pm | = 5.2195180147936E+15 miles (mi) |
| 8400 Pm | = 887.85540640524 light years (ly) |
| 8400 Pm | = 3.1748035495815E+22 pixels (PX) |
| 8400 Pm | = 5.25E+53 planck length (pl) |