Lewis structure for aso3 3-

The Lewis structure is. This is an AX₄ system, so it has a tetrahedral geometry. The steric number (lone pairs + bonds to atoms) is 4, so the hybridization is sp³. PF₄⁻ The Lewis structure shows a P atom with a lone pair and a bond to each of the F atoms. This is an AX₄E system, so the ion has a seesaw geometry,

The Lewis structure of ClO3, also known as chlorine trioxide, is a diagram that represents the arrangement of atoms and electrons in the molecule. In this structure, chlorine (Cl) is bonded to three oxygen (O) atoms. The central chlorine atom is surrounded by three oxygen atoms, each forming a single bond.AsO 3 3-has one arsenic atom and three oxygen atoms. In AsO 3 3-Lewis structure, there are three single bonds around the arsenic atom, with three oxygen …draw the lewis dot structure for AsO3^3- draw the lewis dot structure for H2SO3 The dominant Lewis structure is generally the one in which the atoms bear formal charges closest to ________Question: Fill in the following for the the assigned molecules: AsO3- , CIF2- 1) Molecular Formula 2) Name 3) Total valence electron count 4)Lewis Structure 5) Molecular Geometry 6) 3-D Drawing 7) ... Lewis Structure. 5) Molecular Geometry. 6) 3-D Drawing. 7) Bond Angles. 8) Polar or Non-polar. Expert Answer.Learn to depict molecules and compounds using the Lewis structure. Explore the relationship between the octet rule, valence electron, and the electron dot diagram. Related to this Question

To draw the lewis structure, you will need to know the total number of valence electrons present. The number of valence electrons in an individual atom can be found based on the atom's group number in the periodic table. Below is a table that coordinates the group number to the valence electrons. Groups 3-12, which are the transition metals ...Ans 1. Lewis structure of H2CO (a) H2CO lewis' construction is comprised of one oxygen, one carbon, and two hydrogens. These iotas are organized such that, the carbon particle is kept in a focal position and it is associated with two hydrogens with …. Write Lewis structures for the following: (a) H2CO (both H atoms are bonded to C), (b) H2O2 ...Lewis Structures. A Lewis Structure is a representation of covalent molecules (or polyatomic ions) where all the valence electrons are shown distributed about the bonded atoms as either shared electron pairs (bond pairs) or unshared electron pairs (lone pairs). A shared pair of electrons is represented as a short line (a single bond). Identify the molecular geometry of AsO3−4AsO43−. Here’s the best way to solve it. The lewis structure o …. Identify the molecular geometry of Aso . Draw the Lewis structure of AsO lone pairs showing all Otetrahedral O T-shaped Select Rings More Draw Erase square pyramidal square planar O octahedral linear O trigonal planar bent O ... AsO3 3- Lewis Structure How to Draw the Dot Structure for AsO3 3- (Arsenic Trichloride) Aso3 Lewis Structure. You may also like. Oxidising product of substance Na_(3)AsO_(3) would be 12 REDOX REACTIONS CHEMISTRY.In the lewis structure of ammonia (NH 3), there are three N-H bonds and one lone pair on nitrogen atom. Lewis structure of NH 3 can be drawn by starting from valence electrons of nitrogen and hydrogen atoms in several steps. Each step of drawing the lewis structure of NH 3 is explained in detail in this tutorial.Sep 17, 2023 · The ASO3 3 molecule is an inorganic compound that is widely used in the semiconductor industry. It is a colorless gas that has a pungent odor and is highly toxic. Understanding the Lewis structure of ASO3 3 is crucial for those who work with this compound. That is, arsenic is an anion element. As + 3e - → As 3-. The electron configuration of arsenic ion (As 3-) is 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6. This electron configuration shows that the arsenic ion (As 3-) acquired the electron configuration of krypton. Arsenic atom exhibits -3, +3, +5 oxidation state.

What would be the Lewis dot structure for Br_3^-? Give the Lewis dot structure of BF3. Give the Lewis dot structure of CH4. Give the Lewis dot structure of NH3. Give the Lewis dot structure of SF2. Draw the Lewis structure of S_8. Draw the Lewis Structure of C 2 H 5 C 3 H 3 O . Draw a Lewis structure for SO3. Draw Lewis structure of C_2 HO_4^-answer 4. For the best answers, search this site shorturl.im/spKOc. Arsenic is lower than phosphorus (both are group 15) in the periodic table, so the structure of AsO3^3- is the same as that of PO3^3-. Arsenic is the central bond to 3 oxygen atoms with a single pair: Molecular geometry: trigonal pyramidal Electronic geometry: tetrahedral.Draw and explain the Lewis structure for the molecule KrF2. Draw and explain a Lewis structure for the molecule H2O2. Draw and explain the Lewis structure for the molecule SF4. Draw and explain the Lewis structure for B2H6. Draw the S_2O_3^{2-}. Lewis structure and circle the best one with an explanation. Draw and explain the Lewis dot diagram ...Shopping online can be a great way to save time and money, but it can also be a bit daunting if you’ve never done it before. John Lewis is one of the most popular online retailers ...Answer and Explanation: 1. Become a Study.com member to unlock this answer! Create your account. View this answer. X e B r 2 is called xenon dibromide. Xe is a noble gas and thus has 8 electrons in its outermost orbital, while Br... See full answer below.

Nj transit 71 bus schedule.

Draw the Lewis dot structure for NCl_3. Draw the Lewis dot structure for (CH_2NO_2)^-. Draw the Lewis structure for the C atom. Draw the Lewis dot diagram for S2-. Draw Lewis dot structure for CH_4S. Draw the Lewis dot structure of Sr(CN)_2. Draw the Lewis dot structure for BrO_3^{1-}. Draw the Lewis dot structure for G e F 2 6 .What is the lewis structure, molecular structure, polarity, isomers, and hybridization for molecules: AsO3^-, NH2^-, PO3^-, C2H4F2 This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts.A step-by-step explanation of how to draw the PO3 3- Lewis Dot Structure (Phosphite ion).For the PO3 3- structure use the periodic table to find the total nu...Draw the Lewis structure of AsO3−4 showing all lone pairs. Identify the molecular geometry of AsO3−4 There are 2 steps to solve this one. Who are the experts? Experts have been vetted by Chegg as specialists in this subject. Expert-verified.

The Lewis electron structure for the NH 4+ ion is as follows: The nitrogen atom shares four bonding pairs of electrons, and a neutral nitrogen atom has five valence electrons. Using Equation 8.5.1, the formal charge on the nitrogen atom is therefore. formal charge(N) = 5 − (0 + 8 2) = 0.The hybridization of arsenic in AsO3- can be determined by looking at the Lewis structure of the molecule and counting the number of sigma bonds and lone pairs of electrons on the. Continue reading. Ask a new question. Discover more from: General Inorganic Chemistry I CHEM 1411.The hypothetical ion AsO3−is a polyatomic anion, with the arsenic atom as the central atom. How many valence electrons does this ion have? Question 2 How many electron pairs does AsO3 - have? Question 3 Identify the correct Lewis structure for AsO3.Question: Fill in the following for the the assigned molecules: AsO3- , CIF2- 1) Molecular Formula 2) Name 3) Total valence electron count 4)Lewis Structure 5) Molecular Geometry 6) 3-D Drawing 7) ... Lewis Structure. 5) Molecular Geometry. 6) 3-D Drawing. 7) Bond Angles. 8) Polar or Non-polar. Expert Answer.Draw the Lewis Structure for the chlorate ion (ClO 3-). Solution. First, lets find the how many valence electrons chlorate has: ClO 3 - : 7 e-(from Cl) + 3(6) e-(from 3 O atoms) + 1 (from the total charge of -1) = 26 . There are 26 valence electrons. Next lets draw the basic framework of the molecule:It is possible to draw a structure with a double bond between a boron atom and a fluorine atom in BF 3, satisfying the octet rule, but experimental evidence indicates the bond lengths are closer to that expected for B–F single bonds. This suggests the best Lewis structure has three B–F single bonds and an electron deficient boron.A step-by-step explanation of how to draw the AsO4 3- Lewis Dot Structure.For the AsO4 3- structure use the periodic table to find the total number of valenc...Arrange the steps involved in drawing a Lewis structure in the correct order, starting with the first step on top. Count the valence electrons fro all atoms, and add or subtract electrons according to the charge. Place the atoms relative to each other. Place a bond between every pair of atoms, using two valence electrons for each bond.

It is possible to draw a structure with a double bond between a boron atom and a fluorine atom in BF 3, satisfying the octet rule, but experimental evidence indicates the bond lengths are closer to that expected for B-F single bonds. This suggests the best Lewis structure has three B-F single bonds and an electron deficient boron.

3.3: Lewis Structures. Page ID. 210699. Unit Objectives. Explain the formation of cations, anions, and ionic compounds. Predict the charge of common … SubmitMy AnswersGive. Problem 8.51. Part A. Write Lewis structure that obeys the octet rule for OCS and assign formal charges to each atom. Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons. Show the formal charges of all atoms in the correct structure. AsO3 3- Lewis Structure: How to Draw the Lewis Structure for AsO3 3- Aso3 Lewis Structure. Draw Lewis structure for. SOLVED: QUESTION What is the formal charge on As in AsO You must draw the polyatomic ion to determine the formal charge on the central atom.Recognize that you are drawing the Lewis structure for SO3, which consists of one sulfur (S) atom and three oxygen (O) atoms. Sulfur has 6 valence electrons, and each oxygen has 6 valence electrons. Calculate the total number of valence electrons: 6 (S) + 6 (O) * 3 = 24 valence electrons. 2. Place the Least Electronegative Atom in the Center. Question: Draw the Lewis structure with the lowest formal charges for NO. Include any nonzero formal charges and lone pair electrons in the structure. Here’s the best way to solve it. Count the total number of valence electrons from both nitrogen and oxygen atoms to determine the number available for bonding and lone pairs in the molecule. The Lewis dot structure for AsO3^3- (arsenite ion) is given in the image. To draw the Lewis dot structure for AsO3^3-, we need to determine the total number of valence electrons present in the molecule/ion. Arsenic (As) belongs to Group 15 of the periodic table and has 5 valence electrons. Oxygen (O) belongs to Group 16 and has 6 valence electrons.3. What are the steps to follow in order to determine which molecule has a higher bond order by drawing the Lewis structure? For example, with CO C O and COX3X2− C O X 3 X 2 −? ⋅ ⋅ ⋅ 43 4 3.Science. Chemistry. Write Lewis structures for the following: (c) C2F6 (contains a C¬C bond), (d) AsO3 3 -, (e) H2SO3 (H is bonded to O), (f) NH2Cl.. Arrange the bonds in each of the following sets in order of increasing polarity: (a) C¬F, O¬F, Be¬F; (b) O¬Cl, S¬Br, C¬P; (c) C¬S, B¬F, N¬O. What is the Lewis symbol for each of the ...

Medline industries tolleson az.

How much kellie pickler worth.

Developing a Lewis Structure. A chemical formula will show each atom present in the molecule and the number of each atom. A Lewis structure cna be used to represent how the atoms are arranged in the molecule which will include bonding and nonbonding electrons. The bonding electrons are present in bonds and the number of electrons per single ...In the lewis structure of Arsenate ion (AsO4 3-), there are three As-O bonds and one As=O bond. Arsenic atom is located as the center atom and there are five bonds around arsenic atom. Three oxygen atoms have 3 lone pairs and arsenic atom does not have lone pairs. We will learn how to draw the lewis structure of AsO4 3- step by step in this ...AsO3-3. Shape: Polar or nonpolar: 8. N2O (put 1 N in the middle) Shape: Polar or nonpolar: 4. IO4-Shape: Polar or nonpolar: 9. H2CO. Shape: Polar or nonpolar: 5. SeO2. Shape: Polar or nonpolar: 10. NO2-Shape: Polar or nonpolar: VSEPR Homework 11-20. Draw the Lewis Structure for each compound or ion listed below, give its shape, and determine if ...The Lewis structure for the amide anion can be shown as in the given figure.. What is Lewis structure? Lewis structures, also known as Lewis dot formulas, are diagrams that show the bonding between atoms of a molecule, as well as the lone pairs of electrons that may exist in the molecule. In the given element two H and one N are used, in which N has 5 valance electrons, and one H has 1 valence ...In this detailed guide, we will walk you through the process of drawing the Lewis structure for CH₂Cl₂ (dichloromethane), a molecule used in various chemical applications. Step-by-Step Guide to Drawing the Lewis Structure of CH2Cl2 1. Find the Total Valence Electrons Begin by determining the total number of valence electrons in CH2Cl2. Carbon (C) contributesNov 13, 2023 · Here’s how you can easily draw the AsO 43- Lewis structure step by step: #1 Draw a rough skeleton structure. #2 Mention lone pairs on the atoms. #3 If needed, mention formal charges on the atoms. #4 Minimize formal charges by converting lone pairs of the atoms, and try to get a stable Lewis structure. Answer and Explanation: 1. Become a Study.com member to unlock this answer! Create your account. View this answer. Given with the compound A s O 3 3 −. To find out the lewis structure, need to add the valence electron of central atom as... See full answer below. 122.920 g/mol. Arsenite (3-) is an arsenite ion resulting from the removal of all three protons from the hydroxy groups of arsenous acid. It is an arsenite ion and a trivalent inorganic anion. It is a conjugate base of an arsenite (2-). See also: potassium arsenite anhydrous (active moiety of); Cupric arsenite (is active moiety of); Quinine ... ….

Step #1: Calculate the total number of valence electrons. Here, the given ion is CO3 2- ion. In order to draw the lewis structure of CO3 2- ion, first of all you have to find the total number of valence electrons present in the CO3 2- ion. (Valence electrons are the number of electrons present in the outermost shell of an atom).The C3H6O Lewis structure is a molecular formula that represents a compound with three carbon atoms, six hydrogen atoms, and one oxygen atom. The structure of the molecule is such that the carbon atoms are arranged in a chain with the oxygen atom bonded to one of the end carbon atoms. Each carbon atom in the chain is also bonded to two hydrogen ...It is possible to draw a structure with a double bond between a boron atom and a fluorine atom in BF 3, satisfying the octet rule, but experimental evidence indicates the bond lengths are closer to that expected for B–F single bonds. This suggests the best Lewis structure has three B–F single bonds and an electron deficient boron.Here's the best way to solve it. lewis structure is: In XeCl4, the four Cl at …. Draw the Lewis structure of XeCl_4 showing all lone pairs. What are the approximate bond angles in XeCl_4? Select all that apply. 90 degrees 109.5 degrees 120 degrees 180 degrees An XeCl_4 molecule is polar. nonpolar.Question: Fill in the following for the the assigned molecules: AsO3- , CIF2- 1) Molecular Formula 2) Name 3) Total valence electron count 4)Lewis Structure 5) Molecular Geometry 6) 3-D Drawing 7) ... Lewis Structure. 5) Molecular Geometry. 6) 3-D Drawing. 7) Bond Angles. 8) Polar or Non-polar. Expert Answer.Our videos prepare you to succeed in your college classes. Let us help you simplify your studying. If you are having trouble with Chemistry, Organic, Physics, Calculus, or Statistics, we got your back! Our videos will help you understand concepts, solve your homework, and do great on your exams.Lewis structure of AsO43- ion contains one double bond and three single bonds between the Arsenic (As) atom and Oxygen (O) atoms. The Arsenic atom (As) is …Answer and Explanation: 1. Become a Study.com member to unlock this answer! Create your account. View this answer. The molecular shape is tetrahedral. The electron geometry is trigonal pyramidal. The Lewis dot structure is shown as: See full answer below.The Lewis structure obtained in Figure A \textbf{Figure A } Figure A - all atoms have 8 electrons, oxygen atoms are the same (having 3 lone pair each) and connected to the B r Br B r via a single bond. B r Br B r has one lone pair. The formal charges for atoms in such Lewis structure would be:I am trying to write down the Lewis structure for AsO3-4, (question 20 from week 7&8 homework), but I keep on getting the structure incorrect. I currently have As in the middle with three negative charge O, and then a double bond O. I have 6 lone pairs around the Os, and it says that its incorrect. Any tips on how fix the Lewis structure for AsO3-4 Lewis structure for aso3 3-, 1. Determine the total number of valence electrons in the molecule. Oxygen has 6 valence electrons, and there are 3 oxygen atoms in ozone, so there are a total of 18 valence electrons. Step 2/5 2. Arrange the atoms in the molecule. In ozone, one oxygen atom is in the center, and the other two are bonded to it. Step 3/5 3., VIDEO ANSWER:and this problem we're looking for the structure for Yes. Molecular. Yeah. So the first thing we're gonna do is figure out how many electrons we have. So here we'll have six valence electrons and each corn It gives us seven. And don't forget about your charge here. So since we have negative two as our charge, that means we have two extra electrons., Draw the Lewis dot structure for BrO_3^{1-}. Draw and explain the Lewis structure for a compound with the formula C4H10. Draw the Lewis dot structure for XeOF2. Draw Lewis dot structure for CH_4S. Draw and explain the Lewis structure for the molecule XeF4. Draw the Lewis dot structure for XeCl_3. Draw the Lewis dot structure for N_4O., This is an example of resonance. What is a resonant Lewis structure? 3) Explain how a diminished and expanded octet can be formed. arrow_forward. arrow_back_ios. arrow_forward_ios. Recommended textbooks for you. arrow_back_ios arrow_forward_ios. Chemistry by OpenStax (2015-05-04) Chemistry., 3. What are the steps to follow in order to determine which molecule has a higher bond order by drawing the Lewis structure? For example, with CO C O and COX3X2− C O X 3 X 2 −? ⋅ ⋅ ⋅ 43 4 3., Ozone is one of the most common examples used to study the Lewis structure. The molecule of Ozone has three oxygen atoms. It is written as O3 in the core chemistry equations. To understand the hybridization, polarity and molecular geometry of the Ozone molecule it is crucial to know the Lewis structure of the same. Name of molecule., Science. Chemistry. 00O0 0000 We can draw three inequivalent Lewis structures for the arsenite ion , AsO,. The concepts of formal charge and electronegativity can help us choose the structure that is the best representation. 1. Assign formal charges to the elements in each of the structures below. Note: Count oxygen atoms starting from the left ..., Assign formal charges to the elements in each of the structures below. Note: Count oxygen atoms starting from the left for each structure. 3- As. As. As. :O: :0: C B A Formal Charge As 01 02 03 3- 2. The best Lewis structure for AsO3 is , The Lewis electron structure for the NH 4+ ion is as follows: The nitrogen atom shares four bonding pairs of electrons, and a neutral nitrogen atom has five valence electrons. Using Equation 8.5.1, the formal charge on the nitrogen atom is therefore. formal charge(N) = 5 − (0 + 8 2) = 0., For AsO3- draw the lewis structure, identify it's shape, identify "polar" or "nonpolar" draw all resonance structures if applicable draw all isomers if applicable This problem has been solved! You'll get a detailed solution from a subject matter …, The Lewis structure of C2, the chemical formula for diatomic carbon, is written with two Cs connected by two straight lines. Each C also contains one pair of dots, for a total of t..., Question: Draw the Lewis structure with the lowest formal charges for NO. Include any nonzero formal charges and lone pair electrons in the structure. Here’s the best way to solve it. Count the total number of valence electrons from both nitrogen and oxygen atoms to determine the number available for bonding and lone pairs in the molecule. , A Lewis diagram shows how the valence electrons are distributed around the atoms in a molecule. Shared pairs of electrons are drawn as lines between atoms, while lone pairs of electrons are drawn as dots next to atoms. When constructing a Lewis diagram, keep in mind the octet rule, which refers to the tendency of atoms to gain, lose, or share ..., Question: Fill in the following for the the assigned molecules: AsO3- , CIF2- 1) Molecular Formula 2) Name 3) Total valence electron count 4)Lewis Structure 5) Molecular Geometry 6) 3-D Drawing 7) ... Lewis Structure. 5) Molecular Geometry. 6) 3-D Drawing. 7) Bond Angles. 8) Polar or Non-polar. Expert Answer., Draw the Lewis dot structure for NCl_3. Draw the Lewis dot structure for C_2H_5F. Draw the Lewis dot structure for ClF_2^+. Draw the Lewis dot structure for PH_2^-. Draw and explain the Lewis dot diagram for NH4+. Draw the Lewis dot structure for: a. {ClO_3}^- b. XeF_2 c. {BrO_2}^-Draw the Lewis structure for each of the following molecules and ..., Drawing Lewis Structures . Procedure. 1.) Count up the total number of valence electrons available. Add electrons for negatively charged species and subtract electrons for positively charged species. Ex: CH 2 O (C is central atom) 4 e-(C) + 1 e-(H) + 1 e-(H) + 6 e-(O) = 12 e- 2.) Calculate the total number of electrons that would be needed if each atom had its own noble-gas shell of electrons ..., Steps. Use these steps to correctly draw the I 3- Lewis structure: #1 First draw a rough sketch. #2 Mark lone pairs on the atoms. #3 Calculate and mark formal charges on the atoms, if required. Let's discuss each step in more detail., Draw the Lewis structure of AsO3−4 showing all lone pairs. Identify the molecular geometry of AsO3−4 There are 2 steps to solve this one. Who are the experts? Experts have been vetted by Chegg as specialists in this subject. Expert-verified., , Wired magazine's How To Wiki has a short and sweet article on how to make your emails more efficient with a defined structure., N2O or nitrous oxide is commonly known as laughing gas. There are several other names by which this compound is known like sweet air, protoxide of nitrogen, etc. N2O is a colorless gas with a molecular weight of 44.013 g/mol. The boiling point of this compound is -88.48℃ and the melting point is -90.86℃., What is the Lewis dot structure for GaI_3? What is the resonance structure of NH2-? Include the Lewis structure. What is the lewis structure for Si2I4? What is the lewis structure for the following: a) \ HgCl_2 \\ b) \ SnCl_4; What would be the Lewis structure for AsO3 ^3-? What is the Lewis dot structure of HXeSH?, AsO4 3- is a chemical formula for tribromide ion. And to help you understand the Lewis Structure of this molecule, we are going to share our step-by-step met..., AsO3 3- Lewis Structure: How to Draw the Lewis Structure for AsO3 3- Arsenate(2-), trioxo- AsO3- CID 15787841 PubChem. Arsenite AsO3 ChemSpider. Draw Lewis structure for. AsO3 Chemical Dictionary Guidechem. SOLVED: Rank the following ions in order of decreasing bond order: AsO3 [Select] AsO4 [Select] AsO2 [Select], The AsO33- ion's 3-charge necessitates the addition of three extra valence electrons to the Lewis structure.. There are a total of 26 valence electrons available for the AsO33- Lewis structure.. Given that it has the lowest electronegative potential, the arsenic atom occupies the core of the Lewis structure.. The AsO33- Lewis structure should be surrounded by brackets and a 3- to indicate that ..., Solved Identify the correct Lewis structure for AsO3. | Chegg.com. Science. Chemistry. Chemistry questions and answers. Identify the correct Lewis structure for AsO3., What would be the Lewis structure for AsO3 ^3-? Draw the Lewis structure of CH_3OH^{2+}. Draw the Lewis structure for CF4. Draw Lewis structure of C_2 HO_4^-Draw the Lewis structure of NOF. Draw the Lewis structure for NH3. Draw the Lewis structure for O_2. Draw the Lewis Structure of C 2 H 5 C 3 H 3 O . Draw the Lewis structure for N2., Draw the Lewis structure for the most stable azide ion, N−3.N3−. Include lone pairs. Azides of heavy metals explode when struck sharply and are used in detonation caps. Draw the Lewis structure for the most stable azide ion, N−3.N3−. Include lone pairs. There are 3 steps to solve this one., Answer to: What is the Lewis structure for C_6 H_3 N_3 O_6? By signing up, you'll get thousands of step-by-step solutions to your homework..., 3 átomos de hidrógeno. 1 átomo de arsénico. 3 átomos de oxígeno. Peligrosidad. Los compuestos que contienen arsénico son muy tóxicos por lo que su manipulación debe de realizarse con seguridad para evitar problemas de salud como por ejemplo: Sarpullido. Náusea y vómitos. Lagrimeo en los ojos. Diarrea y calambres estomacales., Lewis electron dot diagrams use dots to represent valence electrons around an atomic symbol. Lewis electron dot diagrams for ions have less (for cations) or more (for anions) dots than the corresponding atom. This page titled 9.2: Lewis Electron Dot Diagrams is shared under a CC BY-NC-SA 3.0 license and was authored, remixed, and/or curated by ..., Structure, properties, spectra, suppliers and links for: Arsenite, 15502-74-6., a) hydroxylamine, H 3 NO b) ethene, C 2 H 4 c) ethane, C 2 H 6. Answer. Exercise 4.4.2 4.4. 2. Elements in the third row of the periodic table often behave similarly to elements in the second row. Use the idea of valence to construct Lewis structures of the following compounds: a) PH 3 b) CS 2 c) SiH 4 d) PCl 3. Answer.