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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 Exameters (Em) is equal to 1000000000000000000 meters, while 1 Bohr Radius (Bohr) = 5.29177E-11 meters.| 42500 Exameters | to common length units |
|---|---|
| 42500 Em | = 4.25E+22 meters (m) |
| 42500 Em | = 4.25E+19 kilometers (km) |
| 42500 Em | = 4.25E+24 centimeters (cm) |
| 42500 Em | = 1.3943569553806E+23 feet (ft) |
| 42500 Em | = 1.6732283464567E+24 inches (in) |
| 42500 Em | = 4.6478565179353E+22 yards (yd) |
| 42500 Em | = 2.6408275670087E+19 miles (mi) |
| 42500 Em | = 4492125.5681218 light years (ly) |
| 42500 Em | = 1.6062994149669E+26 pixels (PX) |
| 42500 Em | = 2.65625E+57 planck length (pl) |