What is the Difference Between Magnetic Quantum Number and Spin Quantum Number?
🆚 Go to Comparative Table 🆚The magnetic quantum number and spin quantum number are two distinct quantum numbers that describe different properties of an electron in an atom. Here are the key differences between them:
- Magnetic Quantum Number (ml): This quantum number is used to differentiate orbitals within a subshell. It represents the energy, shape, and orientation of an orbital. The possible values of ml follow the equation: -l, +1, +2, +3, +l, where l is the angular momentum quantum number. Each orbital with a specific ml value can contain 2 electrons.
- Spin Quantum Number (ms): This quantum number describes the electron spin of each electron. It has two possible values: +1/2 (spin up) or -1/2 (spin down). The electron spins either counterclockwise (spin up) or clockwise (spin down). The spin magnetic quantum number represents the current state of the particle.
In summary, the magnetic quantum number is associated with the energy, shape, and orientation of an orbital within a subshell, while the spin quantum number describes the electron spin.
Comparative Table: Magnetic Quantum Number vs Spin Quantum Number
The magnetic quantum number and spin quantum number are both used to describe the behavior of electrons in atoms. Here is a table highlighting the differences between the two:
Quantum Number | Description | Values |
---|---|---|
Magnetic Quantum Number (ml) | Differentiates orbitals within subshells. The value depends on the angular momentum (l) and can be positive, negative, or zero. | -l, …, +l |
Spin Quantum Number (ms) | Describes the electron's spin state. Can have values of +1/2 (spin up) or -1/2 (spin down). | +1/2, -1/2 |
The magnetic quantum number is useful for differentiating orbitals within subshells, while the spin quantum number describes the electron's spin state, which is either clockwise (spin down) or counterclockwise (spin up).
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