MCQ practice · SSC Chemistry Board questions · Chapter 3: Structure of Matter
What is the value of (n + l) for the 5f orbital?
Think it through first, then pick an option.
- a 5
- b 6
- c 7
- d 8
Answer and explanation
Correct answer: d 8
5f: n = 5, l = 3, so n + l = 8.
Why the other options are wrong
- a 5: 5 is only n; add f's l = 3: 5 + 3 = 8.
- b 6: 6 would be 5p (5 + 1); for 5f, l = 3, so 5 + 3 = 8.
- c 7: 7 is the value for 4f or 5d; for 5f it is 5 + 3 = 8.
Your account is open, so all 30,000+ MCQs from every chapter are yours. Start practising SSC Chemistry →
Want to keep going?
A free account carries you on to the next questions and opens 30,000+ MCQs from every chapter. Join before launch and Chirkut bundles are 60% off.
The ones you missed, worth one more look