Spin quantum number (ms) is the quantum number for the electron having values +1⁄2 and -1⁄2. Serves to differentiate between two electrons in the same orbital.
Generalic, Eni. "Spin quantum number." Croatian-English Chemistry Dictionary & Glossary. 29 June 2022. KTF-Split. {Date of access}. <https://glossary.periodni.com>.
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Periodic Table