Question

What is Quantum Number?Describe it in Details.

Answer 1

Quantum Numbers
Quantum numbers are a set of values that describes the state of an electron including its distance from the nucleus, the orientation and type of orbital where it is likely to be found, and its spin. The Pauli exclusion principle states that no two electrons in an atom can have the same set of quantum numbers. The principle quantum number (n) is the number of the electron's shell. The angular momentum quantum number (l) is the type of orbital (s=0, p=1, etc). The magnetic quantum number (ml) is the orientation of the orbital (integers from –l to l, for p = -1, 0, 1). The spin projection quantum number (ms) is the spin of the electron (either -½ or ½).

Answer 2

Quantum numbers are a set of values that describes the state of an electron including its distance from the nucleus, the orientation and type of orbital where it is likely to be found, and its spin. The Pauli exclusion principle states that no two electrons in an atom can have the same set of quantum numbers.

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