• In quantum mechanics, the principal quantum number (n) of an electron in an atom indicates which electron shell or energy level it is in. Its values are...
    8 KB (1,135 words) - 13:04, 26 February 2025
  • Thumbnail for Azimuthal quantum number
    azimuthal quantum number is the second of a set of quantum numbers that describe the unique quantum state of an electron (the others being the principal quantum...
    19 KB (2,143 words) - 12:36, 8 April 2025
  • Thumbnail for Quantum number
    atom, four quantum numbers are needed. The traditional set of quantum numbers includes the principal, azimuthal, magnetic, and spin quantum numbers. To...
    30 KB (3,266 words) - 21:31, 4 April 2025
  • used to describe the quantum state of an electron in an atom are the principal quantum number n, the azimuthal (orbital) quantum number ℓ {\displaystyle \ell...
    10 KB (1,196 words) - 19:04, 21 November 2024
  • angular momentum operators Principal quantum number Orbital angular momentum quantum number Magnetic quantum number Spin quantum number Angular momentum coupling...
    3 KB (351 words) - 19:01, 23 April 2024
  • In quantum mechanics, the eigenvalue q {\displaystyle q} of an observable O {\displaystyle O} is said to be a good quantum number if the observable O {\displaystyle...
    10 KB (1,409 words) - 18:17, 16 April 2025
  • Slater's rules (category Quantum chemistry)
    groups in order of increasing principal quantum number n, and for equal n in order of increasing azimuthal quantum number l, except that s- and p- orbitals...
    8 KB (1,255 words) - 12:33, 19 July 2022
  • Thumbnail for Energy level
    hc / λ assuming that the principal quantum number n above = n1 in the Rydberg formula and n2 = ∞ (principal quantum number of the energy level the electron...
    22 KB (2,832 words) - 12:10, 3 January 2025
  • Thumbnail for Rydberg atom
    high principal quantum number, n. The higher the value of n, the farther the electron is from the nucleus, on average. Rydberg atoms have a number of peculiar...
    51 KB (5,774 words) - 22:25, 10 February 2025
  • Thumbnail for Pauli exclusion principle
    four of their quantum numbers, which are: n, the principal quantum number; ℓ, the azimuthal quantum number; mℓ, the magnetic quantum number; and ms, the...
    25 KB (3,452 words) - 23:14, 1 February 2025
  • Due to their quantum description, flavour states may also undergo quantum superposition. In atomic physics the principal quantum number of an electron...
    24 KB (2,963 words) - 21:28, 28 January 2025
  • The old quantum theory is a collection of results from the years 1900–1925, which predate modern quantum mechanics. The theory was never complete or self-consistent...
    33 KB (4,834 words) - 21:57, 3 May 2025
  • closer you get to the ionization threshold energy, the higher the principal quantum number, and the smaller the energy difference between near threshold Rydberg...
    8 KB (888 words) - 11:05, 18 April 2023
  • the innermost "K" shell (principal quantum number 1) from a 3p orbital of the third or "M" shell (with principal quantum number 3). The transition energies...
    8 KB (988 words) - 06:34, 13 September 2023
  • four numbers. The first property describing the orbital is the principal quantum number, n, which is the same as in the Bohr model. n denotes the energy...
    77 KB (9,386 words) - 10:44, 4 May 2025
  • transitioning from n ≥ 3 to n = 2, where n refers to the radial quantum number or principal quantum number of the electron. The transitions are named sequentially...
    12 KB (1,328 words) - 21:50, 8 May 2025
  • an approximate relationship between the plasma density and the principal quantum number of the highest bound state of an atom. The equation was derived...
    3 KB (289 words) - 10:38, 3 March 2024
  • transitions from a higher energy level of an electron to a level with principal quantum number n = 4. The lines have wavelengths: 10124 Å (n = 5 to n = 4) (infrared)...
    10 KB (1,270 words) - 15:11, 15 July 2024
  • Thumbnail for Lyman-alpha
    from an n = 2 orbital to the ground state (n = 1), where n is the principal quantum number. In hydrogen, its wavelength of 1215.67 angstroms (121.567 nm or...
    5 KB (493 words) - 02:52, 18 May 2025
  • hydrogen atom as an electron goes from n ≥ 2 to n = 1 (where n is the principal quantum number), the lowest energy level of the electron (groundstate). The transitions...
    7 KB (968 words) - 16:24, 12 May 2025
  • Thumbnail for Rydberg formula
    Rydberg formula (category Foundational quantum physics)
    {\displaystyle n_{1}} is the principal quantum number of an energy level, and n 2 {\displaystyle n_{2}} is the principal quantum number of an energy level for...
    13 KB (1,900 words) - 16:21, 3 March 2025
  • } where n {\displaystyle n} is the principal quantum number, and Z is an integer for the atomic number. In the Bohr model, the angular momentum...
    21 KB (2,637 words) - 06:00, 9 November 2024
  • simplification of the older Siegbahn notation. In X-ray notation, every principal quantum number is given a letter associated with it. In many areas of physics...
    4 KB (302 words) - 16:27, 7 March 2023
  • Thumbnail for Hydrogen atom
    Hydrogen atom (category Quantum models)
    permittivity, and n {\displaystyle n} is the quantum number (now known as the principal quantum number). Bohr's predictions matched experiments measuring...
    39 KB (6,024 words) - 20:13, 4 April 2025
  • Thumbnail for Aufbau principle
    Aufbau principle (category Foundational quantum physics)
    n is the principal quantum number. The maximum number of electrons in a subshell is equal to 2(2l + 1), where the azimuthal quantum number l is equal...
    28 KB (3,097 words) - 02:28, 13 April 2025
  • In quantum physics, a quantum state is a mathematical entity that embodies the knowledge of a quantum system. Quantum mechanics specifies the construction...
    42 KB (5,551 words) - 08:30, 18 February 2025
  • Thumbnail for Valence electron
    electrons residing in the electronic shell of highest principal quantum number n. Thus, the number of valence electrons that it may have depends on the...
    24 KB (2,333 words) - 15:26, 27 November 2024
  • Thumbnail for Wave function
    is the principal quantum number, ℓ = 0, 1, ..., n − 1 the azimuthal quantum number, m = −ℓ, −ℓ + 1, ..., ℓ − 1, ℓ the magnetic quantum number. Hydrogen-like...
    99 KB (13,587 words) - 21:25, 14 May 2025
  • Thumbnail for Hydrogen spectral series
    {1}{n^{2}}}\right)} where Z is the atomic number, n′ (often written n 1 {\displaystyle n_{1}} ) is the principal quantum number of the lower energy level, n (or...
    19 KB (1,910 words) - 14:26, 5 January 2025
  • Thumbnail for Fine structure
    quantum mechanics of non-relativistic electrons with no spin. For a hydrogenic atom, the gross structure energy levels only depend on the principal quantum...
    18 KB (3,097 words) - 01:54, 20 May 2025