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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 Decimeters (dm) is equal to 0.1 meters, while 1 Bohr Radius (Bohr) = 5.29177E-11 meters.| 1899000000 Decimeters | to common length units |
|---|---|
| 1899000000 dm | = 189900000 meters (m) |
| 1899000000 dm | = 189900 kilometers (km) |
| 1899000000 dm | = 18990000000 centimeters (cm) |
| 1899000000 dm | = 623031496.06299 feet (ft) |
| 1899000000 dm | = 7476377952.7559 inches (in) |
| 1899000000 dm | = 207677165.35433 yards (yd) |
| 1899000000 dm | = 117998.38940587 miles (mi) |
| 1899000000 dm | = 2.007187400909E-8 light years (ly) |
| 1899000000 dm | = 717732373887.54 pixels (PX) |
| 1899000000 dm | = 1.186875E+43 planck length (pl) |