What does the principal quantum number represent?
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27. What are the possible values of the principal quantum number n? What does the principal quantum number determine?
What is the principal quantum number for Na? Since the electron configuration is 1s2 2s2 2p6 3s1, would the principal quantum number be 1 or 3?
If it is 1, wouldn't all elements have the same principal quantum number?
What does the secondary quantum number represent?