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.
Yard
A yard is a unit of length used mainly in the United States, the United Kingdom, and some other countries. One yard equals 3 feet or 36 inches, which is about 0.91 meters. Yards are often used to measure things like fabric, sports fields, or short distances. For example, an American football field is 100 yards long. The abbreviation for yard is "yd". While the metric system is widely used worldwide, yards are still common in everyday life and certain industries in countries that use the imperial system.
No conversions available for length.