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:An element X with electronic configuration 1s² 2s²…The number of electronic shells contained in an atom…What is the atomic number of an element whose cation…The element with electron configuration 1s2 2s2 2p 6…The number of unpaired electrons in an atom of an…