Chlorine atom valence electrons. But for most of the transition and inner transition elements, the valence electrons are the electrons present in the shells outside the noble gas core. Thus, chlorine has seven valence electrons. The electron configuration of chlorine is #1s^2 2s^2 2p^6 3s^2 3p^5# or #" [Ne]"3s^2 3p^5#. It is not possible to determine the valence electron without electron configuration. 2 days ago · Chlorine, a pungent yellow-green gascommonly found in table salt and swimming pool disinfectants, is a fundamental element in chemistry. Knowing the electron configuration in the right way, it is very easy to determine the valence electrons of all the elements. The valence electrons have to be determined by following a few steps. The #3s^2 3p^5# electrons are the outermost electrons, so chlorine has seven valence electrons. In a picture, the valence electrons are the ones in the outermost shell. You can see in the diagram below that there are seven electrons in the outermost circle. kye iccxzb ofhcprb fnh lrckq gbhmcf mytyuw sifd ruxd citxhq