Home ยป The atomic number of an element having maximum number of unpaired electrons in p-subshell is Atomic Structure MCQs The atomic number of an element having maximum number of unpaired electrons in p-subshell is January 8, 2022 18 Views Q. The atomic number of an element having maximum number of unpaired electrons in p-subshell is A. 7 B. 10 C. 12 D. 16 Answer: 7