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.
An ell is a unit of measurement, originally a cubit, i.e., approximating the length of a man's arm from the elbow ("elbow" means the bend or bow of the ell or arm) to the tip of the middle finger, or about 18 inches (4 ..more definition+
In relation to the base unit of [length] => (meters), 1 Bohr Radius (Bohr) is equal to 5.29177E-11 meters, while 1 Ells (eel) = 1.143 meters.| 1 Bohr Radius | to common length units |
|---|---|
| 1 Bohr | = 5.29177E-11 meters (m) |
| 1 Bohr | = 5.29177E-14 kilometers (km) |
| 1 Bohr | = 5.29177E-9 centimeters (cm) |
| 1 Bohr | = 1.7361450131234E-10 feet (ft) |
| 1 Bohr | = 2.083374015748E-9 inches (in) |
| 1 Bohr | = 5.7871500437445E-11 yards (yd) |
| 1 Bohr | = 3.2881534339458E-14 miles (mi) |
| 1 Bohr | = 5.593245957087E-27 light years (ly) |
| 1 Bohr | = 2.0000393070916E-7 pixels (PX) |
| 1 Bohr | = 3.30735625E+24 planck length (pl) |
| Bohr Radius | to Ells (table conversion) |
|---|---|
| 1 Bohr | = 4.6297200349956E-11 eel |
| 2 Bohr | = 9.2594400699913E-11 eel |
| 3 Bohr | = 1.3889160104987E-10 eel |
| 4 Bohr | = 1.8518880139983E-10 eel |
| 5 Bohr | = 2.3148600174978E-10 eel |
| 6 Bohr | = 2.7778320209974E-10 eel |
| 7 Bohr | = 3.2408040244969E-10 eel |
| 8 Bohr | = 3.7037760279965E-10 eel |
| 9 Bohr | = 4.1667480314961E-10 eel |
| 10 Bohr | = 4.6297200349956E-10 eel |
| 20 Bohr | = 9.2594400699913E-10 eel |
| 30 Bohr | = 1.3889160104987E-9 eel |
| 40 Bohr | = 1.8518880139983E-9 eel |
| 50 Bohr | = 2.3148600174978E-9 eel |
| 60 Bohr | = 2.7778320209974E-9 eel |
| 70 Bohr | = 3.2408040244969E-9 eel |
| 80 Bohr | = 3.7037760279965E-9 eel |
| 90 Bohr | = 4.1667480314961E-9 eel |
| 100 Bohr | = 4.6297200349956E-9 eel |
| 200 Bohr | = 9.2594400699913E-9 eel |
| 300 Bohr | = 1.3889160104987E-8 eel |
| 400 Bohr | = 1.8518880139983E-8 eel |
| 500 Bohr | = 2.3148600174978E-8 eel |
| 600 Bohr | = 2.7778320209974E-8 eel |
| 700 Bohr | = 3.2408040244969E-8 eel |
| 800 Bohr | = 3.7037760279965E-8 eel |
| 900 Bohr | = 4.1667480314961E-8 eel |
| 1000 Bohr | = 4.6297200349956E-8 eel |
| 2000 Bohr | = 9.2594400699913E-8 eel |
| 4000 Bohr | = 1.8518880139983E-7 eel |
| 5000 Bohr | = 2.3148600174978E-7 eel |
| 7500 Bohr | = 3.4722900262467E-7 eel |
| 10000 Bohr | = 4.6297200349956E-7 eel |
| 25000 Bohr | = 1.1574300087489E-6 eel |
| 50000 Bohr | = 2.3148600174978E-6 eel |
| 100000 Bohr | = 4.6297200349956E-6 eel |
| 1000000 Bohr | = 4.6297200349956E-5 eel |
| 1000000000 Bohr | = 0.046297200349956 eel |