Home/
Competitive Exams/
NEET/
Chemistry/
Structure of Atom/
Question 21087
NEET Chemistry · Medium

Structure of Atom: Orbital filling MCQ

Solve this quality-checked NEET multiple-choice question, then review the correct answer and explanation.

Timer-based practiceDetailed answer reviewMobile-friendly flow
Orbital fillingMediumQuestion 21087

Question

Oxygen (Z = 8) has number of unpaired electrons equal to:

  1. A
    2
    Correct
  2. B
    1
  3. C
    3
  4. D
    0

Correct answer

2

Explanation

In 2p42p^4, one pair forms and two electrons remain unpaired.

Review Structure of Atom notesStart timed chapter practice