Question

what is meant by principal quantum number and angular momentum number and magnetic quantum number and spin quantum number

Answer 1

Principal Quantum number - The principal quantum number n represents the relative overall energy of each orbital. The energy level of each orbital increases as its distance from the nucleus increases. The sets of orbitals with the same n value are often referred to as electron shells or energy levels.

Angular momentum number - The angular momentum quantum number, l, (also referred to as the secondary quantum number or azimuthal quantum number) describes the shape of the orbital that an electron occupies. The lowest possible value of l is 0, and its highest possible value, depending on the principal quantum number, is n - 1.

Magnetic quantum number - The magnetic quantum number distinguishes the orbitals available within a subshell, and is used to calculate the azimuthal component of the orientation of orbital in space. Electrons in a particular subshell (such as s, p, d, or f) are defined by values of ℓ (0, 1, 2, or 3).

Spin quantum number - The Spin Quantum Number ( ) describes the angular momentum of an electron. An electron spins around an axis and has both angular momentum and orbital angular momentum. Because angular momentum is a vector, the Spin Quantum Number (s) has both a magnitude (1/2) and direction (+ or -).

Answer 2

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