Solved UPSC CDS/OTA Question
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Q · Structure of the AtomMedium · 45s
The total number of orbitals in the third shell is:
TopicStructure of the Atom
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained - no skipped algebra.
For n=3, total orbitals = n² = 9.
Final Answer: Option C - 9