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UPSC Combined Geo-Scientist

Chemist

  • 2 objective papers
  • 120 questions each
  • 2 h per paper
  • 100 + 300 marks

Prelims Paper I covers general studies.

UPSC Combined Geo-Scientist, Prelims · 2023 · Paper I, General Studies · Q18 of 120

Geo-Scientist Prelims 2023 General Studies Q18: What is the total number of orbitals associated with the principal…

QuestionAtomic structure / quantum numbers

What is the total number of orbitals associated with the principal quantum number 3?

  1. (a) 3
  2. (b) 6
  3. (c) 9
  4. (d) 12

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