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It goes by valence electrons. The configuration of Sulfur is: 1s2 2s2 2p6 3s2 3p4. Sulfur has 6 valence the electrons in the 3s and 3p oribitals. So the principal quantum number, which is denoted by n, is equal to 3. Thus n=3 is for sulfur.

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14y ago

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The principal quantum number of sulfur is 3. It represents the main energy level or shell in which the electron is found in a sulfur atom.

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9mo ago
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Q: What is the principal quantum number of sulfur?
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