Question
In what order do electrons fill orbitals?
A. Orbitals s, p, and then d fill in one energy level before starting the
next level.
• B. Electrons fill orbitals in order of increasing orbital energy.
C. The orbitals fill before the s orbitals in an energy level.
D. Before pairing, 1 electron occupies each s and p orbital.
Answer
B. Electrons fill orbitals in order of increasing orbital energy.