Home » What do we call the region of space around the nucleus where the probability of finding an electron is maximum? Atomic Structure MCQs What do we call the region of space around the nucleus where the probability of finding an electron is maximum? January 8, 2022 31 Views Q. What do we call the region of space around the nucleus where the probability of finding an electron is maximum? A. Shell B. sub-shell C. Orbital D. electron cloud Answer: Orbital