Remember, Chlorine is in Period 3 and can hold more than 8 valence electrons. Lewis Dot of the Perchlorate Ion. COVID-19 is an emerging, rapidly evolving situation. Chlorine does not follow the octet rule. Cl's: 8 val e - each, O: 8 val e-, P: 10 val e - Cl's: 8 val e - each, O: 8 val e-, P: 8 val e - Cl:7. Perchlorate | ClO4- | CID 123351 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. Chlorine having valence electrons in the 3rd energy level, will also have access to the 3d sublevel, thus allowing for more than 8 electrons. * add an electron to the total since the molecule has -1 charge on it. Total=31+1=32*. Step method to draw lewis structure of perchlorate ion. Step 1: Find valence e- for all atoms. Get … Back. This is because both atoms in the molecule are non-metals. Step2: Find octet e- for each atom and add them together. Lewis structure of ClO4-. The Lewis structure for ClO4-requires you to place Chlorine (Cl) in the center of the structure since it is the most electronegative. 70 More Lewis Dot Structures. As a result, they will be sharing there electrons among them. ClO4 is a molecule bound by covalent bonds. In Lewis structures, unbonded electrons , also known as unpaired electrons are represented by dots (where the name comes from) and each bond as as a straight line. Let's learn with an example. Additionally, only valence electrons are counted. Elements in the first 2 periods of the Periodic Table do not have access to the d sublevel and must adhere to the octet (or … #1. It will hold more than 8 electrons. To balance their outer shells, chlorine attaches with 4 oxygen atoms, sharing all the one pairs to achieve stability. Add them together. Draw the Lewis dot structure … Lewis Structure: Halogens, when not central atom forms only 1 bond; O prefers to form 2 bonds; P has an expanded octet . You might think you've got the correct Lewis structure for ClO4-at first. ClO4-. Drawing Lewis Structures. O:6x4=24.