Category: Physics Constants

In physics, the electron mass or mass of electron or electron rest mass one of the fundamental constants and is defined as the mass of a stationary electron. Denoted by me. The value of electron mass is also known as the invariant mass of an electron. Electron Mass Value Electron mass is sometimes termed as…

In the science of spectroscopy, under physics, the Rydberg constant is a physical constant relating to atomic spectra. It is denoted by R∞ for heavy atoms and RH for Hydrogen. Rydberg constant was first arising from the Rydberg formula as a fitting parameter. Later Neils Bohr has calculated it from fundamental constants. Rydberg Constant Value R∞ and electron spin g-factor…

The gas constant is a physical constant denoted by R and is expressed in terms of units of energy per temperature increment per mole. It is also known as Ideal gas constant or molar gas constant or universal gas constant. The gas constant value is equivalent to Boltzmann constant but expressed as the pressure-volume product instead of…

In Physics, Stefan-Boltzmann Constant also known as Stefan’s constant is a physical constant. It is the constant of proportionality in Stefan-Boltzmann law of Blackbody radiation. Stefan Boltzmann Constant is denoted by Greek letter σ. This physical constant was formulated by Josef Stefan during 1879 and derived by Ludwig Boltzmann during 1884. Stefan Boltzmann Constant Value The…

What are neutrons? It is a subatomic particle. Neutron is the composition of 1 up quark and 2 down quark and comes under the family of fermions. It is denoted by n or nº. The neutron mass is slightly higher than the proton mass. The charge of the neutron is null, which implies that neutron is…

In physics, the Compton wavelength is the quantum mechanical property of a particle and is defined as the wavelength of the particle equal to the wavelength of the photon with same mass. It is well explained through the process called Compton scattering. The standard Compton wavelength is denoted by Greek letter λ (Lambda) measured using…

In atomic, physics, Bohr Radius is a physical constant, expressing the most probable distance between the electron and the nucleus in a Hydrogen atom in the ground state. Denoted by ao or rBohr. Due to his prime role in building the Bohr model, This physical constant is named after him. Bohr Radius (ao or rBohr) The value…