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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.
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 Fermi (fermi) is equal to 1.0E-15 meters, while 1 Bohr Radius (Bohr) = 5.29177E-11 meters.| 6991000000000 Fermi | to common length units |
|---|---|
| 6991000000000 fermi | = 0.006991 meters (m) |
| 6991000000000 fermi | = 6.991E-6 kilometers (km) |
| 6991000000000 fermi | = 0.6991 centimeters (cm) |
| 6991000000000 fermi | = 0.022936351706037 feet (ft) |
| 6991000000000 fermi | = 0.27523622047244 inches (in) |
| 6991000000000 fermi | = 0.0076454505686789 yards (yd) |
| 6991000000000 fermi | = 4.3440060049312E-6 miles (mi) |
| 6991000000000 fermi | = 7.3892823168798E-19 light years (ly) |
| 6991000000000 fermi | = 26.422680494196 pixels (PX) |
| 6991000000000 fermi | = 4.369375E+32 planck length (pl) |