quantum number

integer or half-integer that describe the level of energy of particles according to the quantum theory

Quantum numbers describe values of conserved numbers in the dynamics of the quantum system. They often describe specifically the energies of electrons in atoms, but other possibilities include angular momentum, spin etc. Since any quantum system can have one or more quantum numbers, it is a futile job to list all possible quantum numbers.
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Indices that label quantized energy states. Quantum numbers are used to describe the state of a confined electron, e. g. an electron in an atom.

B: (Kimia) bilangan kuantum
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B: (Kimia) bilangan kuantum momentum sudut
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Eng: quantum number
Urdu: مِقداری عدد ۔ جوہری طریقے میں اعداد سالم کا یک سیٹ