If the electron configuration of an element is p1s² 2s² 2P5; how many unpaired electrons are there? by Sunday | Oct 13 | Chemistry JAMB | 0 comments A. 2 B. 8 C. 1 D. 4 Correct Answer: Option C – 1 Users Also Read These:The element with electron configuration 1s2 2s2 2p 6…What is the atomic number of an element whose cation…An element X has electron configuration 1s² 2s² 2p6…Element X, with electronic configuration 2, 8, 2 and…The number of electronic shells contained in an atom…