Multiple choice Which of the following is a correct form of electronic configuration of an element? 8, 2, 2, 8 2, 8, 2, 8 2, 8, 8, 2 8, 8, 2, 2 8, 2, 8, 2 Reveal answer Fill a bubble to check yourself C Correct answer Explanation Until inner shells are completely filled, electrons are not accommodated in a given shell. Valence shell cannot have more than 8 electrons.