An Allegory is used to tell a story that has characters, a setting, as well as other types of symbols, that have both literal and figurative meanings.
Chlorine is counted among this group along with hydrogen (H 2), iodine (I 2), bromine (Br 2), oxygen (O 2), nitrogen (N 2) and fluorine (Fl 2). With seven electrons in its outermost orbit--one electron short of a stable eight-- the element chlorine exists in nature as a diatomic molecule. This arrangement allows two chlorine atoms to share their outermost orbit electrons, achieving stability, compared to the single atom.
eg. chlorine has 17 electrons, so it order is 2,8,7 Cl has 1 less electron to make the chlorine atom stable, so it charge is Cl-. it has a negative charge. Sodium has 11 electrons, so it order is 2,8,1 Na has 1 extra electron that it wants to get rid of to make Na stable and its charge is Na+. it has positive charge. How many electrons does gallium give up when it becomes an ion?