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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.| 215900 Exameters | to common length units |
|---|---|
| 215900 Em | = 2.159E+23 meters (m) |
| 215900 Em | = 2.159E+20 kilometers (km) |
| 215900 Em | = 2.159E+25 centimeters (cm) |
| 215900 Em | = 7.0833333333333E+23 feet (ft) |
| 215900 Em | = 8.5E+24 inches (in) |
| 215900 Em | = 2.3611111111111E+23 yards (yd) |
| 215900 Em | = 1.3415404040404E+20 miles (mi) |
| 215900 Em | = 22819997.886059 light years (ly) |
| 215900 Em | = 8.1600010280316E+26 pixels (PX) |
| 215900 Em | = 1.349375E+58 planck length (pl) |