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Basically what the Wiki User is saying:

They act as codes that provide information about each electron in an atom.

n - energy level (can be 1,2,3…)

l - orbital shape (s=0, p=1, d=2)

ml - orbital orientation (goes from -/to +/by integers)

ms - spin (arrow up or down, and can be either +½ or -½)

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3y ago
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11y ago

Quantum numbers are the sets of numerical values which satisfies Schrodinger wave equation. There are four quantum numbers:

Principal quantum number(n) showing number of shells available

Azimuthal quantum number(l) showing orientation of the orbitals

Magnetic quantum numbers(m) showing number of degenerate orbitals

Spin quantum number(s) showing clockwise and anti clockwise spin of electrons

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