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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.
A unit of length used to measure nuclear distances, = 10−15 meter. Named for the Italian physicist Enrico Fermi (1901–1954). Now obsolete, replaced by the SI term femtometer (symbol, fm); 1 fermi = 1 femtometer.
In relation to the base unit of [length] => (meters), 1 Bohr Radius (Bohr) is equal to 5.29177E-11 meters, while 1 Fermi (fermi) = 1.0E-15 meters.| 4739074959 Bohr Radius | to common length units |
|---|---|
| 4739074959 Bohr | = 0.25078094695787 meters (m) |
| 4739074959 Bohr | = 0.00025078094695787 kilometers (km) |
| 4739074959 Bohr | = 25.078094695787 centimeters (cm) |
| 4739074959 Bohr | = 0.82277213568856 feet (ft) |
| 4739074959 Bohr | = 9.8732656282628 inches (in) |
| 4739074959 Bohr | = 0.27425737856285 yards (yd) |
| 4739074959 Bohr | = 0.00015582805600162 miles (mi) |
| 4739074959 Bohr | = 2.6506811854759E-17 light years (ly) |
| 4739074959 Bohr | = 947.83361972534 pixels (PX) |
| 4739074959 Bohr | = 1.5673809184867E+34 planck length (pl) |