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Principal quantum number information


In quantum mechanics, the principal quantum number (symbolized n) is one of four quantum numbers assigned to each electron in an atom to describe that electron's state. Its values are natural numbers (from one) making it a discrete variable.

Apart from the principal quantum number, the other quantum numbers for bound electrons are the azimuthal quantum number , the magnetic quantum number ml, and the spin quantum number s.

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Principal quantum number

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In quantum mechanics, the principal quantum number (symbolized n) is one of four quantum numbers assigned to each electron in an atom to describe that...

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Quantum number

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atom, four quantum numbers are needed. The traditional set of quantum numbers includes the principal, azimuthal, magnetic, and spin quantum numbers. To...

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Azimuthal quantum number

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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...

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Magnetic quantum number

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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...

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Total angular momentum quantum number

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angular momentum operators Principal quantum number Orbital angular momentum quantum number Magnetic quantum number Spin quantum number Angular momentum coupling...

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Energy level

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h c / 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...

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Rydberg atom

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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...

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Pauli exclusion principle

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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...

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Balmer series

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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...

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Lyman series

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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. The transitions are...

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History of quantum mechanics

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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...

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Valence electron

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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...

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Hydrogen spectral series

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{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...

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Relativistic quantum chemistry

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} 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...

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Hydrogen atom

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permittivity, and n {\displaystyle n} is the quantum number (now known as the principal quantum number). Bohr's predictions matched experiments measuring...

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Good quantum number

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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...

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Old quantum theory

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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...

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Rydberg formula

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{\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...

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Quantum state

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In quantum physics, a quantum state is a mathematical entity that embodies the knowledge of a quantum system. Quantum mechanics specifies the construction...

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Aufbau principle

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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...

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Rydberg molecule

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closer you get to the ionization threshold energy, the higher the principal quantum number, and the smaller the energy difference between near threshold Rydberg...

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Fine structure

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quantum mechanics of non-relativistic electrons with no spin. For a hydrogenic atom, the gross structure energy levels only depend on the principal quantum...

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Wave function

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In quantum physics, a wave function (or wavefunction) is a mathematical description of the quantum state of an isolated quantum system. The most common...

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Electron shell

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quantum numbers ℓ and m) to explain the fine spectroscopic structure of some elements. The multiple electrons with the same principal quantum number (n)...

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Spectroscopic notation

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atom or positronium. Azimuthal quantum number Electron configuration Mnemonics for orbital letters Principal quantum number Term symbol X-ray notation Molecular...

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