Arrangement of electrons - 3 | Quantum Theory and Atomic Structure

General Chemistry 1 - Arrangement of electrons - 3

Using the Aufbau principle, write the expected complete electron configurations for each of the following atoms by showing the electrons as half-headed arrows in partially filled orbitals.

S, Fe and C

S: 1s22s22p63s23p4


Fe: 1s22s22p63s23p64s23d6 


C: 1s22s22p2