Which of the Following Statements Is/are Correct

question 48

Multiple Choice

Which of the following statements is/are correct?
i.Principal energy levels are identified by the letters s,p,d,and f
ii.Principal energy levels appear in both the quantum mechanical model of the atom and the Bohr model of the atom
iii.In general,n = 1 is at lower energy than n = 2,and n = 2 is lower than n = 3,and so on
iv.The principal energy level is related to electron spin

• A)i only
• B)iv only
• C)i and ii
• D)ii and iii
• E)iii and iv

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