Bohr Radius
The Bohr radius is a fundamental physical constant that represents the average distance between the nucleus and the electron in a hydrogen atom in its ground state, according to the Bohr model of the atom.
Its value is approximately 5.29177 × 10⁻¹¹ meters (about 0.529 angstroms).
Named after physicist Niels Bohr, who introduced the model in 1913.
It sets a natural length scale in atomic physics and quantum mechanics.
Used to describe atomic sizes and electron orbitals.
Key facts:
Bohr radius ≈ 5.29 × 10⁻¹¹ m
Represents the typical size of a hydrogen atom’s electron orbit
Fundamental to quantum physics and atomic structure
The Bohr radius is essential for understanding atomic dimensions and quantum behavior of electrons.
Mile
A mile is a unit of length commonly used in the United States and the United Kingdom to measure long distances. One mile equals 5,280 feet or about 1.609 kilometers. Miles are often used to measure distances between cities, in running races like the mile run, or for driving distances shown on road signs. The abbreviation for mile is "mi". Although many countries use the metric system with kilometers, miles remain popular in some places for everyday distance measurements and travel.
No conversions available for length.