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.
Example: Let's determine the number of valence electrons in the chlorate (ClO 3 -) ion. A chlorine atom (Group VIIA) has seven valence electrons and each oxygen atom (Group VIA) has six valence electrons. Because the chlorate ion has a charge of -1, this ion contains one more electron than a neutral ClO 3 molecule.Thus, the ClO 3 - ion has a total of 26 valence electrons. ClO 3 - : 7 + 3(6) + 1 = 26. The second step in this process involves deciding which atoms in the molecule are connected by covalent bonds.ecause the chlorate ion has a charge of -1, this ion contains one more electron than a neutral ClO 3 molecule. Thus, the ClO 3 - ion has a total of 26 valence electrons. ClO 3 - : 7 + 3(6) + 1 = 26. The second step in this process involves deciding which atoms in the molecule are connected by covalent bonds.