Multiple choice

How many electrons have their spins paired in an atom of oxygen (Atomic Number 8)?

  1. 2

  2. 4

  3. 5

  4. 6

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Electronic configuration of oxygen is 1s2, 2s2, 2p4. So six electrons have their spins paired in an atom of oxygen.