Save my name, email, and website in this browser for the next time I comment. According to the octet rule, a molecule should have eight electrons in its outer shell to become inert or stable. We need to put no extra electrons in the molecular geometry of CH2Cl2. Chlorine is the most electronegative atom. Indicate whether each covalent bond is polar or nonpolar. Start typing to see posts you are looking for. CH2Cl2 Lewis Structure: How to Draw the Lewis Structure for CH2Cl2 In this article, we will know the structure, In Lewis structure the lines represent the bonds and dots represent the valence electrons. It has 14 valence electrons, and all of them participate in forming bonds. Having an MSc degree helps me explain these concepts better. Now, there are no more lone pairs to mark on carbon atom. Your email address will not be published. CH2Cl2 lewis structure, molecular geometry, polarity | Dichloromethane The electronegative value difference between carbon and chlorine, Electronegativity value of chlorine= 3.16, Difference of electronegativity value between carbon and chlorine= 3.16 2.55 =0.61, The electronegative value difference between carbon and hydrogen, Electronegativity value of hydrogen= 2.20, Difference of electronegativity value between carbon and hydrogen= 2.55 2.20 =0.35. Copyright 2023 - topblogtenz.com. has four electrons in its last shell. Corresponding to sp3 hybridization, the geometry is tetrahedral when there are no lone pairs of electrons on the central atom. What is the Lewis structure of CH2Cl2? this program removes extra spaces for some reason. Start typing to see posts you are looking for. explanation helped slightly. The central atom is the one that has the highest bonding capacity; it is the atom that is the shortest of the octet. 1 triple bond and 2 single bonds. lewis structure. It is a colorless and volatile liquid with a sweet smell. Also, the arrangement of the bonded pairs is asymmetric, which makes Dichloromethane polar. The approx bond angle in CH 2 Cl 2 is based on the type of bond, Cl-C-H = 108, H-C-H = 112, Cl-C-Cl = 112.2. Save my name, email, and website in this browser for the next time I comment. One electron each comes from H, H, Cl, and Cl atoms: 1s1 of each H and 3pz1 of each Cl. Lone Molecular Electron ridi Bond Pairs AX AXE AX Ch 4 The shape of molecules Soka Thus far, we have used two-dimensional Lewis structures to represent molecules. https://geometryofmolecules.com/ch2cl2-lewis-structure-molecular-geometry-polarity/, https://techiescientist.com/ch2cl2-lewis-structure/, https://www.thegeoexchange.org/chemistry/bonding/Lewis-Structures/CH2Cl2-lewis-structure.html, https://www.chemistryscl.com/general/CH2Cl2-dichloromethane-lewis-structure/, https://lambdageeks.com/ch2cl2-lewis-structure/, https://topblogtenz.com/ch2cl2-lewis-dot-structure-molecular-geometry-hybridization-bond-angle/, https://sciedutut.com/ch2cl2-lewis-structure/, First, determine the total number of valence electrons. the octet rule and formal charges need to be satisfied. The central atom Carbon (C) is bonded with four atoms (two hydrogen and two chlorine atoms) and it has no lone pair which means, it is an AX4 type molecule, as per VSEPR theory, its geometry or shape is tetrahedral. { "Lewis_Structures:_Resonance" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()" }, { Atomic_and_Ionic_Radius : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", Atomic_Radii : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", Dipole_Moments : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", Electronegativity : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", Electron_Affinity : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", Formal_Charges : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", Intermolecular_Forces : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", Ionization_Energy : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", Lewis_Structures : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", Magnetic_Properties : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", Molecular_Polarity : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", Polarizability : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()" }, { All_About_Water : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", Atomic_and_Molecular_Properties : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", Material_Properties : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", Solutions_and_Mixtures : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", States_of_Matter : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()" }, [ "article:topic", "showtoc:no", "license:ccbyncsa", "licenseversion:40" ], https://chem.libretexts.org/@app/auth/3/login?returnto=https%3A%2F%2Fchem.libretexts.org%2FBookshelves%2FPhysical_and_Theoretical_Chemistry_Textbook_Maps%2FSupplemental_Modules_(Physical_and_Theoretical_Chemistry)%2FPhysical_Properties_of_Matter%2FAtomic_and_Molecular_Properties%2FLewis_Structures, \( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}}}\) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash{#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)\(\newcommand{\AA}{\unicode[.8,0]{x212B}}\), status page at https://status.libretexts.org. It has a difference in electronegativity values between carbon and chlorine atoms, with carbons pull being less than chlorines terminal in the CH2Cl2 molecule. Hey folks, this is me, Priyanka, writer at Geometry of Molecules where I want to make Chemistry easy to learn and quick to understand. Steps. arrow_forward The overview provided in this article helps in establishing a basic understanding of the structure of CH2Cl2 through chemical bonding. Valence electrons are the sum total of the electrons every molecule has in their outer shell in a compound. The Lewis structure of the methane (CH4) molecule is drawn with four single shared covalent bonds between the carbon and hydrogen atoms each. of bonds + lone pairs at the central atom, = 4 + 0 ( there are no lone pairs in CH3Cl as there is symmetric distribution of electrons). I write all the blogs after thorough research, analysis and review of the topics. Then the total outermost valence shell electrons can be calculated as follows, Total outermost valence shell electrons available for CH2Cl2 Lewis structure( dot structure) = 4 +2*7+ 2*1=20 valence electrons in CH2Cl2. Cl, we can now draw a Lewis structure for the same. Count how many outermost valence shell electrons have been used so far using the CH2Cl2 Lewis structure. "acceptedAnswer": { Solution for Lewis structure for CH2Cl2. According to the VSEPR theory, for a regular tetrahedral structure, the bonded atoms around the central atom will spread at an angle of approx 109.5 to minimize the repulsion and attains stability. According to VSEPR theory, four bonding regions around the central atom will adopt a tetrahedral geometry. Bonding electrons around hydrogen(1 single bond) = 2. All rights Reserved, Follow some steps for drawing the Lewis dot structure for CH2Cl2. The first step is to determine how many electrons are in the CH2Cl2 Lewis structures outermost valence shell. For this compound, there is one molecule of Carbon, two molecules of Hydrogen and two molecules of Chlorine. These overlapped orbitals are called hybrid orbitals. yes! See answer (1) Copy. helps). Drawing CH2Cl2 Lewis Structure is very easy to by using the following method. Therefore there are two more electrons which comes from outside to contribute to the total valence electrons. a The standard deviation of the sample is 18.26 b The interquartile range is 18 C 25% of values in the sample are smaller than 13. d_ The largest value in the sample was 50. Need to remember that, if you follow above said method, you can construct molecular dot structure very easily. Dichloromethane (CH 2 Cl 2) contains one carbon atom, two hydrogen atoms and two chlorine atoms. Thus, the number of valence electrons is 4. When there is no lone pair, then, central atom with four region of electron density adopt a tetrahedral structure because repulsion is minimum in electron pairs at this position. Formal charge (FC) = Valence electrons 0.5*bonding electrons non-bonding electrons. The tetrahedral molecular geometry and structure of the CH2Cl2 molecules are similar to that of the methane (CH4) molecule. Now, if you see closely, the Carbon atom is sharing four electrons with three hydrogen atoms and a Chlorine atom. In the answer workbook, they drew CH 2 Cl 2 with C in the middle and one H in the top position and the other H in the right position and then the Cl in the bottom position and the other Cl in the left . } The LibreTexts libraries arePowered by NICE CXone Expertand are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. In the following computation, the formal charge will be calculated on the central carbon atom of the CH2Cl2 Lewis dot structure. Also as per the rule, we have to keep hydrogen outside. Hydrogen The molecular geometry of CH2Cl2 is tetrahedral. Explain How Examples: H 2 S, NCl 3, OH -. A: Lewis dot structure or electron dot structure is used to represent the valance electrons in an atom. An electron in an atoms outermost shell is known as a valence electron. Gilbert Lewis's idea explained the covalent bond and set the foundation for valence bond theory. mechanicsburg accident yesterday; lee chamberlin cause of death; why do geordies call cigarettes tabs; tui management style; duggar couples ranked. CH2Cl2 Lewis structure is made up of one carbon (C) atom, two hydrogens (H), and two chlorine (Cl) atoms. has 7 e- x2 so 14e- and added all up together the structure has In case, you have questions floating in your mind, please let me know. Since we are talking about the 2+ cation, it already lost two electrons. (Valence electrons are the number of electrons present in the outermost shell of an atom). The carbon core atom (four single bonds connected to two chlorine and two hydrogen atoms ) of the CH2Cl2 molecule has four valence electrons, no lone pair of electrons, and eight bonding electrons. We aim to make complex subjects, like chemistry, approachable and enjoyable for everyone. The separation of charge between them leads to a dipole moment directed from Carbon to Chlorine. Techiescientist is a Science Blog for students, parents, and teachers. According to the above table, the geometry of CH2Cl2 is tetrahedral, corresponding to the conditions stated for AX4. This usually means the atom lower and/or to the right in the Periodic Table, N in this case. Now we have to choose the central atom from carbon and chlorine. To understand the Lewis structure lets first calculate the total number of valence electrons for Dichloromethane. As the Carbon atom needs 4 electrons to complete its octet, all the valency is satisfied, and it now has eight electrons in its valence shell. This means that the bond angles and bond lengths in CH2Cl2 are not identical; however, all bond angles are identical in CH4. As the compound is highly volatile in nature, it can cause acute inhalation hazards. Total number of valence electrons available for the CH2Cl2 Lewis structure = 4 + 1(2) + 7(2) = 20 valence electrons" Transcript: This is the Lewis structure for CH2Cl2. The carbon (C) atom is kept at the central position and other atoms are at the surrounding position. This will be the sum of the group number a of all atoms plus the charge. Put our Hydrogens here, and then our Chlorines. 11 Uses of Platinum Laboratory, Commercial, and Miscellaneous, CH3Br Lewis Structure, Geometry, Hybridization, and Polarity. And when we divide this value by two, we get the value of total electron pairs. is a group IA element in the periodic table and CH2Cl2 is the chemical formula for DCM. Now just check the formal charge for the above structure to know whether it is stable or not. A single bond has one bond pair means 2 bonding electrons. Wiki User. As a result, carbon is the first atom in the periodic tables carbon family group. A Lewis Structure is a very simplified representation of the valence shell electrons in a molecule. Lewis structure is a theory that helps in understanding the structure of a given compound, based on the octet rule. OneClass: Construct the lewis structure model for the covalent Since carbon is less electronegative than chlorine, assume that the central atom is carbon. What is the Lewis structure of -CH2OCH3 and -Ch=CH2? - Quora There are no resonance structures for CH2Cl2. The electron dot structure of the CH2Cl2 molecule is also known as the CH2Cl2 Lewis structure. However, the molecule (CH2Cl2) has a symmetrical shape i.e. "@type": "Answer", It is widely used as a solvent in chemistry laboratories. Note: Hydrogen (H) always goes outside.3. Thiosulfate ion contains two sulfur atoms and three oxygen atoms. (4 0 8/2) = 0 formal charge on the carbon central atom. document.getElementById( "ak_js" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. Valence shell electron pair repulsion (VSEPR) theory helps to determine the geometry of a molecule on the basis of stoichiometry, the number of bond pairs, and the number of lone pairs on the central atom. In Lewis structure the lines represent the bonds and dots represent the valence electrons. Cl. A colourless liquid at room temperature and a highly volatile substance. Tetrahedral. To calculate the valence electron of each atom in CH2Cl2, look for its periodic group from the periodic table. The preparation of CH2Cl2 involves a high-temperature treatment of methane or chloromethane with chlorine gas. DCM is metabolized as Carbon monoxide in the body that can lead to. Legal. yeah im not sure how to draw it out but ill explain it, first CH2Cl2. Pbr3 Lewis Structure Molecular GeometryLewis Structure Molecular And the chlorine atoms also form an octet. It also depends on the electronegativity of the molecules participating in the formation of the compound. - Science Education and Tutorials, NH3 Molecular Geometry - Science Education and Tutorials. Because, chlorine can show higher valence (7) than carbon (4), we can think chlorine should be the center atom. Well, that rhymed. You have determined the "best" Lewis structure (octets completed and lowest formal charges) for NO. Lewis Structure Generator with Steps [Free for Students] - KioDigital The total valence electron available for drawing the, The steric number of the carbon central atom in the CH. 2. The geometry of a molecule can be determined using the hybridization of the central atom. Central Carbon is hybridized as the molecule forms all the four bonds in the compound. Home How to draw CH2Cl2 Lewis Structure? In general you want: Why are there different ways for the "same" Lewis structure? According to VSEPR theory, no electronic repulsion of the lone pair and bond pair leads the CH2Cl2 molecule to take on a tetrahedral molecular geometry shape. Q: Draw the Lewis structure of CHNH and then choose the appropriate pair of hybridization states for. So, all atoms in the above structure get a formal charge equal to zero, hence, this is our most stable and appropriate lewis dot structure of Dichloromethane (CH2Cl2). SMOJ. 2014-06-10 20 . polarised toward the more electronegative chlorine, The CH2Cl2 molecule is classified as a polar molecule, chlorine octet rule, please see in our previous post, The polarity of CH2Cl2 is discussed in our previous post, How to draw BeCl2 Lewis Structure? Note that there are 8 atomic orbitals mixing to form 8 molecular orbitals. If you have been studying chemistry for some time, then you might be aware of the octet rule. This rule states that atoms bond with each other atoms such that they have eight electrons in the last valence shell. where to buy georgia bourbon snow cream; SMOJ. The carbon atom completes its molecular stability in the CH2Cl2 molecule because it possesses 8 electrons in its bond pairs with two chlorine and two hydrogens in the outermost valence shell. Therefore, chlorine atom will take three lone pair. Solved Choose the best Lewis structure for CH2Cl2. A) B) - Chegg According to the VSEPR theory, molecules having a structure similar to AX4, where a molecule has four negatively charged centers, will take a tetrahedral shape. June 23, 2022. The CH2Cl2 molecule has a permanent dipole moment due to an unequal charge distribution of negative and positive charges. The Lewis with carbon atom. These four orbitals hybridize together to form four identical sp3 orbitals, all of which have the same energy. But no need to mark on hydrogen, because each hydrogen has already two electrons. To see. by converting lone pairs to bonds. It is polar because of the presence of . Now that we know all about the chemical properties and structures of CH2Cl2 lets have a look at its physical properties. DCM is used as a solvent in the food industry and as a paint remover. Total no of valence electrons of CH3Cl = Valence electrons of Carbon + Valence electrons of Hydrogen + Valence electrons of Chlorine, Valence electrons of Hydrogen: 1 * 3 = 3 electrons ( as there are three hydrogen atoms, we will consider valence electrons of all the Hydrogen atoms ), Valence electrons of Chlorine: 7 valence electrons, Total no of valence electrons of CH3Cl= 4 + 3 +7. CH2CL2 Lewis Structure : Why,How,When And Detailed Facts - Lambda Geeks Connect outer atoms to the central atom with a single bond. Chlorine is a group 17 element on the periodic table. Your email address will not be published. CH2Cl2 Lewis Structure - Learnool The team at Topblogtenz includes experts like experienced researchers, professors, and educators, with the goal of making complex subjects like chemistry accessible and understandable for all. (adsbygoogle = window.adsbygoogle || []).push({}); Copyright 2023 Science Education and Tutorials | authored by SciEduTut. S2O32- (Thiosulfate) Lewis Structure So let us have a look at the total number of valence electrons for CH, Now that we know the total number of valence electrons in CH. 5. When two or molecules participate in the bond formation, their orbitals overlap due to the sharing of electrons. A is the number of atoms/groups attached to the central atom; VE is the number of valence electrons on the central atom; Herein, A = 4, VE = 4, V = 4, C = 0; therefore, Hyb = 4, corresponding to sp3. It is also metabolized in the body to form carbon monoxide and can cause poisoning. . The electronegativity value of the carbon atom is 2.55, for a chlorine atom, it is 3.16. Because three are no charges on atoms in above CH2Cl2 structure, we do not need to do the step of reducing charges on atoms Therefore, we can start to mark those remaining electrons pairs on chlorine atoms because each hydrogen atom aleady has two electrons Step 3: That's it Now your window will display the Final Output of your Input. The CH2Cl2 molecules core carbon atom can be represented as follows: Total outermost valence shell electron of carbon atom in CH2Cl2= 4, Total outermost valence shell electron of the chlorine atom in CH2Cl2= 7, The CH2Cl2 molecule has one central carbon, two hydrogen, and two chlorine atoms. The molecule is neutral, i.e., there is no charge on it. The electrons that are involved in bond formation are called bonding pairs of electrons. { An electron from the 22 orbital and three other electrons from 2p orbitals participate in forming bonds. lewis structure for ch2cl Both chlorine atom has three lone pairs and carbon atom does not has lone pairs. Here hydrogen can not be the central atom. Now we need to add lone pairs of electrons. The following table lists this informationon the basis of VSEPR theory for various molecular stoichiometries. - Science Education and Tutorials, Pingback: NH3 Molecular Geometry - Science Education and Tutorials, Your email address will not be published. He loves to learn something new everyday and believes that the best utilization of free time is developing a new skill. Because of this difference in electronegativity, the CH2Cl2 molecules C-Cl bond becomes polar. The molecule of dichloromethane (with tetrahedral molecular geometry) is tilted, the bond angles between chlorine, carbon, and hydrogen are 109.5 degrees. that will use up The central carbon atom undergoes octet stability. We look at the electronic structure of atomic carbon, hydrogen, and chlorine. Four electron bond pairs are shown as dots in the CH2Cl2 chemical structure, whereas four single bonds each contain two electrons. To complete the octet of the chlorine atom, a chlorine terminal atom requires one electron. so off of the C would be your two Cls and two Hs. 4. The total lone pair present in the H2O2 lewis dot structure is 4. So the above lewis dot structure of CH2Cl2 can also be represented as shown below. symmetrical. Then place no electrons as a lone pair of electrons on the carbon atom of the CH2Cl2 molecule. Lone pairs are those represented as dots in the lewis diagram that do not take part in the formation of bonds and are also called nonbonding electrons. Put two electrons between atoms to form a chemical bond.4. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. This is an example of the formation of _____., How many dots are there in the Lewis symbol for a nitrogen atom, N?, Which of the ionic compounds below would be expected to have the highest lattice energy? (7 6 2/2) = 0 formal charge on chlorine atoms. Sn is sp2 hybridized with a bond angle 950 and Sn-Cl bond length 242 pm. CH2Cl2 Lewis structure, Molecular geometry, Hybridization, Bond angle }, Vishal Goyal is the founder of Topblogtenz, a comprehensive resource for students seeking guidance and support in their chemistry studies. The difference in electronegativity of Chlorine and Carbon = 0.61. The compound is naturally derived from the volcanoes, wetlands and other oceanic sources. In this case the N is short 2 electrons so we can use a lone pair from the left most O atom to form a double bond and complete the octet on the N atom. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Methylene chloride, also known as Dichloromethane (DCM), is an organic chemical compound. Hydrogen atom cannot be a center atom because hydrogen atom can only keep two electrons in last shell. The chlorine is more electronegative than carbon, hence, it will attract a negative charge and carbon will get a positive charge. Here, the outside atoms are hydrogens and chlorines. The approx bond angle in CH2Cl2 is based on the type of bond, Cl-C-H = 108, H-C-H = 112, Cl-C-Cl = 112.2. In the very first step, we will count the total valence electron in the CH2Cl2 molecule. Due to the difference in electronegativity value of greater than 0.5, the C-Cl bond of the CH2Cl2 molecule becomes polar. Identify the number of electron groups around a molecule with a tetrahedral shape. To understand its chemical properties and physical properties, one needs first to know the Lewis structure and molecular geometry of CH. The molecules with a non-collinear arrangement of two adjacent bonds have bent molecular geometry. Dichloromethane or methylene chloride, with the chemical formula CH2Cl2, is a colorless, volatile liquid with a boiling point of 39.6 C. Each of these hybrid orbitals has one electron and can accept one more. Required fields are marked *. Now in the above sketch of CH2Cl2 molecule, put the two electrons (i.e electron pair) between the carbon-hydrogen atoms and carbon-chlorine atoms to represent a chemical bond between them. So now, you have to check whether these hydrogen atoms are forming a duplet or not! Answer: B. So, carbon should be placed in the center and the chlorine atom will surround it. Chloromethane ( CH3Cl) has 14 valence electrons. Here in the CH2Cl2 molecule, if we compare the carbon atom (C) and chlorine atom (Cl), then the carbon is less electronegative than chlorine. Hence, Chloromethane has a tetrahedral molecular geometry to avoid the repulsive forces and separating the bonded electrons. mcdonalds garfield mugs worth 3. Both hydrogen atoms and both chlorine atoms have made single bonds with carbon atom. Answer (1 of 4): Actually, no, there is only one acceptable Lewis structure for CH_2Cl_2 Moving the chlorines around does not produce a new compound with a new structure. (because chlorine requires 8 electrons to have a complete outer shell). Now, you have come to the final step and here you have to check the formal charge on carbon atom (C), chlorine (Cl) atoms as well as hydrogen atoms (H). Hence, the carbon atom is the least electronegative atom in the CH2Cl2 compound, therefore, we will put the carbon atom in a central position and (the chlorine and hydrogen atoms) in the surrounding position in the lewis diagram. To calculate the valence electron, look at the periodic group of the individual atoms carbon, hydrogen, and chlorine.