How many values of ml are allowed for an electron in a 5f subshell? ?

There are 7 values of ml are allowed for an electron in a 5f subshell namely: -3 -2, -1, 0, +1, +2, +3

Further explanation

In an atom, there are energy levels in the shell and subshell.This energy level is expressed in terms of electron configurations.

Writing the electron configuration starts from the lowest to the highest subshell's energy level. There are 4 sub-shells in an atom's shell, namely s, p, d, and f. The maximum number of electrons for each subshell is

s: 2 electronsp: 6 electronsd: 10 electrons andf: 14 electrons

Electron filling in subshells using the following sequence:

1s², 2s², 2p⁶, 3s², 3p⁶, 4s², 3d¹⁰, 4p⁶, 5s², 4d¹⁰, 5p⁶, 6s², etc.

Each sub-shell also has orbitals drawn in the form of a square box in which there are electrons symbolized by half arrows.

Each orbital in an atom consists of 4 quantum numbers

n is the principal quantum number.l is the angular momentum / azimuthal quantum numberml, the magnetic quantum numberms, the electron-spin quantum number

Value of n: positive integer

value of l: s = 0, p = 1, d = 2, f = 3

ml value: between -l to + l

ms value: +1/2 or -1/2

Determination of electron configurations based on principles:

1. Aufbau: Electrons occupy orbitals of the lowest energy level2 Hund: electron fills orbitals with the same energy level3. Pauli: there are no electrons that have 4 equal quantum numbers

So for 5f orbitals, the value of a possible quantum number is

n = 5;

l = 3 (f = 3);

m = -3 -2, -1, 0, +1, +2, +3;

s = + - 1/2

Learn more

the locations and properties of two electrons

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It's sublevel

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a possible full set of quantum numbers

link

Keywords: orbitals, subshells, quantum numbers

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