Lewis dot for si - Users can use tools already available in Word, external software or added functionality through the Chemistry add-in to add Lewis dot structures to a Word document. Microsoft Word ...

 
Solution. The valence electron configuration for aluminum is 3 s 2 3 p 1. So it would have three dots around the symbol for aluminum, two of them paired to represent the 3 s electrons: \ [\dot {Al:} onumber \] The valence electron configuration for selenium is 4 s 2 4 p 4. In the highest-numbered shell, the n = 4 shell, there are six electrons.. Harrisonburg movies

Sep 12, 2023 · SiCl4 Lewis structure comprises one silicon (Si) atom and four chlorine (Cl) atoms. There are four Si-Cl bonds present in this lewis diagram. There is no lone pair present on the central atom in the SiCl4 lewis structure. Let’s see how to draw this step by step-Follow some steps for drawing the lewis dot structure of SiCl4. 1. A Lewis symbol consists of an elemental symbol surrounded by one dot for each of its valence electrons: Figure 7.3.1 7.3. 1 shows the Lewis symbols for the elements of the third period of the periodic table. Electron dots are typically arranged in four pairs located on the four "sides" of the atomic symbol.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 ...Given atom will be -> Silicon. So. View the full answer Step 2. Unlock. Answer. Unlock. Previous question Next question. Transcribed image text: Draw the Lewis dot diagram for a Si anion.This page titled 3.3: Lewis Electron-Dot Diagrams is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by Kathryn Haas. The bonding between atoms in a molecule can be topically modeled though Lewis electron dot diagrams. Creating Lewis diagrams is rather simple and requires only a few steps and …Write the Lewis Dot Structure for the following atoms or ions. Al, Cl, K^+, O^2- Si 2)What is the electronic geometry about a central atom which has the following number of regions electron density? a) Four regions of electron density: _____ b) Six regions of electron density: _____ 3)Distinguish between polar and nonpolar bonds. ...Electron dot diagram, also known as Lewis dot diagram, is a representation of the valence electrons of an atom or ion using dots. In the case of silicon (Si), the electron dot diagram depicts the arrangement of its valence electrons. Si is a member of Group 14 in the periodic table, so it has 4 valence electrons.A Lewis electron-dot symbol (or electron-dot symbol or a Lewis symbol) is a representation of the valence electrons of an atom that uses dots around the symbol of the element. The number of dots equals the number of valence electrons in the atom. These dots are arranged to the right and left and above and below the symbol, with no more than two ...Jun 8, 2019 ... For rubidium (Rb), it is in group 1 of the periodic table. Therefore, it has one valence electron. The Lewis electron-dot symbol for Rb is ...Lewis structure is a simplified representation of all the valence electrons of an atom or a molecule.Valence electrons are the electrons present in the outermost shell of an atom and those that get involved in chemical bonding.. Here is the list of all elements (1 to 118) in the periodic table with their Lewis dot structure also called electron dot structure.Provide the Lewis dot symbol for P and identify the electrons shown in the Lewis dot symbol. 10 PRACTICE PROBLEM. Provide the Lewis dot symbol for O. 11 PRACTICE PROBLEM. Based on the condensed electron configurations and Lewis electron-dot symbols, predict the ions formed from the following atoms and determine the formula of …Si + 3HCl ——-> HSiCl3 + H2. 4HSiCl3 ——> SiH4 + 3SiCl4 ... SiH4 Lewis Structure. Lewis Structure is a two-dimensional diagrammatic approach towards finding the nature of chemical bonding present inside any given molecule. Here, we use dot notations to represent the electrons, and hence this is also known as the electron-dot structure. ...Lewis structure: diagram showing lone pairs and bonding pairs of electrons in a molecule or an ion. Lewis symbol: symbol for an element or monatomic ion that uses a dot to represent each valence electron in the element or ion. lone pair: two (a pair of) valence electrons that are not used to form a covalent bond.The Lewis dot diagram for the covalent bonding of chlorine, ( Cl2 ), would be: When atoms are bonded ionically, the bond is represented by two dots between the element's chemical symbols. Ionic bonds are formed between charged particles (ions), so an example of an ionic compound would be NaCl, whose Lewis structure is: Callum S. · 1 · Oct 23 ... Table 2.5.2 2.5. 2: Lewis Dot Symbols for the Elements in Period 2. Ionic compounds are produced when a metal bonds with a nonmetal. Stability is achieved for both atoms once the transfer of electrons has occurred. The image below shows how sodium and chlorine bond to form the compound sodium chloride. For an example, let’s find the Lewis dot structure of a nitride ion ( N 3- ).Three negative charges means nitrogen atom has gained three electrons so its electronic configuration is with 10 electrons (instead of 7). [He]2s 2 2p 6. Valence electrons are 8 (2 in 2s and 6 in 2p) Lewis dot structure of Nitride ion.May 6, 2022 · In the Lewis dot structure, Si is represented by the symbol “Si” with four dots around it, indicating the valence electrons. Oxygen (O): O has 8 electrons. Its electronic configuration is 1s2 2s2 2p4. In the Lewis dot structure, O is represented by the symbol “O” with six dots around it, indicating the valence electrons. Bonding in SiO2 Jul 5, 2023 ... ALEKS: Drawing the Lewis dot diagram of a main group atom or common atomic ion. 2.9K views · 10 months ago ...more ...Electron dot diagram, also known as Lewis dot diagram, is a representation of the valence electrons of an atom or ion using dots. In the case of silicon (Si), the electron dot diagram depicts the arrangement of its valence electrons. Si is a member of Group 14 in the periodic table, so it has 4 valence electrons.Lewis Dot Symbols and Lewis Structures (Writing Lewis Symbols for Atoms) LumenLearning. 43. The Ionic Bond. LumenLearning. 44. Crystals and Band Theory. ... Si already has an octet, so nothing needs to be done. [latex]\text{CHO}_2^-[/latex]: We have distributed the valence electrons as lone pairs on the oxygen atoms, but the carbon atom …A Lewis electron dot diagram (or electron dot diagram or a Lewis diagram or a Lewis structure) is a representation of the valence electrons of an atom that uses dots around the symbol of the element. The number of dots equals the number of valence electrons in the atom. These dots are arranged to the right and left and above and below the ...The second shell, associated with principal quantum number n=2, can have a maximum of 8 electrons and corresponds to the second period of the periodic table. The third shell also …52K views 10 years ago. A step-by-step explanation of how to draw the Lewis dot structure for Si (Silicon). I show you where Silicon is on the periodic table and how to determine how many... Lewis Structure Examples. The Lewis electron dot structures of a few molecules are illustrated in this subsection. 1. Lewis Structure of CO2. The central atom of this molecule is carbon. Oxygen contains 6 valence electrons which form 2 lone pairs. Since it is bonded to only one carbon atom, it must form a double bond. Lewis structures are shown as element symbols with black dots shown around the symbol. the number of black dots corresponding to the valence number. …Lewis Symbols. At the beginning of the 20 th century, the American chemist G. N. Lewis (1875–1946) devised a system of symbols—now called Lewis electron dot symbols (often shortened to Lewis dot symbols) that can be used for predicting the number of bonds formed by most elements in their compounds.Each Lewis dot symbol consists of the … This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Question: 1) Consider a Silicon atom. Draw the lewis dot diagram of a neutral silicon atom, a +1 silicon atom, and a −1 silicon atom. There are 4 steps to solve this one. Lewis dot structures represent atoms with their atomic symbol surrounded by valence electrons, which are represented as dots. This type of symbolic representation can help describe compound formation, especially for covalent compounds. We know that water can be broken down into elemental hydrogen and elemental oxygen, and that the ratio of ...Lewis electron dot diagrams use dots to represent valence electrons around an atomic symbol. Lewis dot symbols can be used to predict the number of bonds …To use the Lewis Structure Calculator follow these steps: Enter the formula of the molecule in the field provided for it. For example, if we want to obtain the Lewis structure of the Sulfate ion, SO 4 – 2, we must first enter the charge by typing (-2) or by entering -2 in the charge field and pressing the «Add» button. Then we write the rest of the formula being …In the Lewis dot structure, Si is represented by the symbol “Si” with four dots around it, indicating the valence electrons. Oxygen (O): O has 8 electrons. Its electronic configuration is 1s2 2s2 2p4. In the Lewis dot structure, O is represented by the symbol “O” with six dots around it, indicating the valence electrons. Bonding in SiO2A Lewis electron dot diagram (or electron dot diagram, or a Lewis diagram, or a Lewis structure) is a representation of the valence electrons of an atom that uses dots around the symbol of the element. The number of dots equals the number of valence electrons in the atom. These dots are arranged to the right and left and above and below the ...Si, the central atom of silane has the following electronic configuration: Si: 1s2 2s2 2p6 3s2 3p2. Si: [Ar] 3s2 3p2. If we look at the diagram, we can see that the s and the three p orbitals come together and combine to form 4 hybridized sp3 orbitals. These hybridized orbitals form sigma bonds with each hydrogen atom.Question: Pre-lab Questions 1. Complete the following table: Element Group Valence Number Electrons Lewis Dot Structure Using the Octet/Duet rules, how many bonds do you think the element will usually form? 1 Н. 1 1 Li 1 1 Mg 2 2 AI 13 3 Si 14 4 P 15 5 S 16 6 CI 17 7 Ar 18 8. Please fill the table and change anything thats wrong. Show ...Gaseous iodine pentafluoride, IF5, can be prepared by the reaction of solid iodine and gaseous fluorine: I21s2 + 5 F21g2¡2 IF51g2 A 5.00-L flask containing 10.0 g of I2 is charged with 10.0 g of F2, and the reaction proceeds until …Each Lewis dot symbol consists of the chemical symbol for an element surrounded by dots that represent its valence electrons. Cesium, for example, has the electron configuration [Xe]6 s1, which indicates one valence electron outside a closed shell. In the Lewis dot symbol, this single electron is represented as a single dot: Figure 8.6 G. N ...A Lewis electron dot diagram (or electron dot diagram, or a Lewis diagram, or a Lewis structure) is a representation of the valence electrons of an atom that uses dots around the symbol of the element. The number of dots equals the number of valence electrons in the atom. These dots are arranged to the right and left and above and below the ...The Lewis dot structure of silica (SiO 2) comprises a silicon (Si) atom at the center.It is double-covalently bonded to two oxygen (O) atoms, one on either side. There is no lone pair of electrons on the central Si-atom; however, each O-atom carries 2 lone pairs in the SiO 2 Lewis structure.. You can easily draw the Lewis structure of SiO 2 by …Dec 13, 2012 ... Lewis Dot Structures for Covalent Compounds - Part 1 - This awesome video shows how to draw lewis dot structures for covalent compounds.Steps. To properly draw the SI 6 Lewis structure, follow these steps: #1 Draw a rough sketch of the structure. #2 Next, indicate lone pairs on the atoms. #3 Indicate formal charges on the atoms, if necessary. Let’s break down each step in more detail.SIF4 is a covalent compound, which consists of silicon and fluorine atoms. It is named tetrafluorosilane or silicon tetrafluoride. The melting and boiling point of silicon tetrafluoride is -95.0 °C and -90.3 °C and hence, it exists as a gas at room temperature. Silicon tetrafluoride is a colorless, toxic, corrosive, and non-flammable gas with ...Question: Identify which of the Lewis-dot symbols for the neutral atoms are valid and which are invalid.ValidInvalid. Identify which of the Lewis - dot symbols for the neutral atoms are valid and which are invalid. There are 4 steps to solve this one.Diagram Dot. In summary, a Lewis Dot Diagram for SiC2 is a visual representation of the bonding between silicon (Si) and carbon (C) atoms in a molecule of silicon carbide (SiC2), showing the valence electrons as dots around each atomic symbol. To draw a Lewis Dot Diagram for SiC2, the number of valence electrons for each atom …Are you looking for a comfortable and stylish recliner to add to your home? Look no further than the John Lewis recliner. This high-quality recliner is designed to provide you with...! 58!! Using!Figure!5.1!is!as!simple!as!following!the!arrows.!!Start!with!the!top! arrow,!and!follow!its!direction!fromtail!to!head;!you!see!that!the!first!arrow!passes!Are you looking for a comfortable and stylish recliner to add to your home? Look no further than the John Lewis recliner. This high-quality recliner is designed to provide you with... The number of dots equals the number of valence electrons in the atom. These dots are arranged to the right and left and above and below the symbol, with no more than two dots on a side. (It does not matter what order the positions are used.) For example, the Lewis electron dot symbol for calcium is simply. Figure 1 shows the Lewis symbols for ... A Lewis electron dot diagram (or electron dot diagram, or a Lewis diagram, or a Lewis structure) is a representation of the valence electrons of an atom that uses dots around the symbol of the element. The number of dots equals the number of valence electrons in the atom. These dots are arranged to the right and left and above and below the ...To draw the Lewis dot structure for SiCl2Br2, let's first determine the total number of valence electrons. Step 1: Find the number of valence electrons for each atom. - Silicon (Si) is in Group 14, so it has 4 valence electrons. - Chlorine (Cl) is in Group 17, so it has 7 valence electrons. - Bromine (Br) is also in Group 17, so it also has 7 ...A Lewis electron dot diagram (or electron dot diagram, or a Lewis diagram, or a Lewis structure) is a representation of the valence electrons of an atom that uses dots around the symbol of the element. The number of dots equals the number of valence electrons in the atom. These dots are arranged to the right and left and above and below the ...We use Lewis symbols to describe valence electron configurations of atoms and monatomic ions. A Lewis symbol consists of an elemental symbol surrounded by one dot for each of its valence electrons:. Figure 7.9 shows the Lewis symbols for the elements of the third period of the periodic table.. Figure 7.9 Lewis symbols illustrating the number of valence …This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Question: Consider the generic Lewis dot symbol for an element. Which element could this symbol represent? X Si Ca CI P ооооо ΑΙ Na S Ne Consider the generic Lewis dot symbol for an element.N2O, or nitrous oxide, has many Lewis dot structures since both nitrogen and oxygen can act as the center atom. In total, there are three valid Lewis dot structures for nitrous oxi...The Lewis dot structure of silica (SiO 2) comprises a silicon (Si) atom at the center.It is double-covalently bonded to two oxygen (O) atoms, one on either side. There is no lone pair of electrons on the central Si-atom; however, each O-atom carries 2 lone pairs in the SiO 2 Lewis structure.. You can easily draw the Lewis structure of SiO 2 by …Chemistry. Chemistry questions and answers. 1. Please fill out the following for SiH4: Lewis Dot Structure, Electron Geometry, Molecular Geometry, and the value for the H-Si-H bond angles in SiH4.2. Please fill out the following for OF2: Lewis Dot Structure, Electron Geometry, Molecular Geometry, and if OF2 is a polar molecule.3.A step-by-step explanation of how to draw the SiCl4 Lewis Dot Structure (Silicon tetrachloride).For the SiCl4 structure use the periodic table to find the to...Jul 30, 2012 ... A video explanation of how to draw the Lewis Dot Structure for Silicon Tetrafluoride, along with information about the compound including ... Lewis Structure Examples. The Lewis electron dot structures of a few molecules are illustrated in this subsection. 1. Lewis Structure of CO2. The central atom of this molecule is carbon. Oxygen contains 6 valence electrons which form 2 lone pairs. Since it is bonded to only one carbon atom, it must form a double bond. Lewis dot structures represent atoms with their atomic symbol surrounded by valence electrons, which are represented as dots. This type of symbolic representation can help describe compound formation, especially for covalent compounds. We know that water can be broken down into elemental hydrogen and elemental oxygen, and that the ratio of ...Jun 20, 2023 · Figure 5.3.1 5.3. 1 The figure above shows the electron shells of He (Helium), Cl (Chlorine), and K (Potassium) as well as their Lewis dot structures below. Notice how both the electron shell and the lewis dot structures have the same number of valence electrons. The lewis dot structure ignores the nucleus and all non-valence electrons ... Problem. What is the Lewis electron dot diagram for each element? aluminum; selenium; Solution. The valence electron configuration for aluminum is 3s 2 3p 1.So it would have three dots around the symbol for aluminum, two of them paired to represent the 3s electrons: . The valence electron configuration for selenium is 4s 2 4p 4.In the highest …Jun 20, 2023 ... ... Lewis Dot Structure for atoms, molecules, ionic compounds, covalent (molecular) compounds…Quantum Physics and Chemistry lectures for MCAT ...When it comes to finding the perfect recliner for your home, John Lewis is a great place to start. With a wide selection of styles and sizes, you’re sure to find something that fit...Each bond requires two electrons for its formation, so the number of bonds is equal to half the number of electrons needed. In short: Step 2- Step 1/ 2 gives you the number of bonds in the molecule. Step 4: Select a central atom. The central atom in a Lewis Dot Structure is the least electronegative of the atom with the highest valence.Table 2.5.2 2.5. 2: Lewis Dot Symbols for the Elements in Period 2. Ionic compounds are produced when a metal bonds with a nonmetal. Stability is achieved for both atoms once the transfer of electrons has occurred. The image below shows how sodium and chlorine bond to form the compound sodium chloride.Lewis Dot Symbols (OpenChem) is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by LibreTexts. Back to top Solutions to Practice ProblemsRecommended Videos. 4,22,042. How to Draw Electron Dot Structures? A Lewis Electron Dot Formula comprises one dot for every valence electron and an element’s symbol. …We use Lewis symbols to describe valence electron configurations of atoms and monatomic ions. A Lewis symbol consists of an elemental symbol surrounded by one dot for each of its valence electrons: Figure 13.4.1 13.4. 1: shows the Lewis symbols for the elements of the third period of the periodic table.Drawing the Lewis Structure for SiF 62-. With SiF 62- be sure to add two additional valence electrons to your total because of the 2-. There are a total of 48 valence electrons in SiF 62- . Silicon (Si) is the least electronegative and goes at the center of the Lewis structure. Silicon (Si) is below Period Two on the periodic table and can hold ...consists of the chemical symbol for the element plus a dot for each valence electron. To write an element’s Lewis dot symbol, we place dots representing its valence electrons, one at a time, around the element’s chemical symbol. Up to four dots are placed above, below, to the left, and to the right of the symbol (in any order, as long as ...For example, in the Lewis dot diagram of silicon, the symbol Si is represented in the center, and there are four dots surrounding it. This indicates that silicon has four valence electrons. The Lewis dot diagram helps to show how silicon can form bonds with other elements to complete its octet, or have a full outer shell of electrons.May 12, 2022 · Hi Guys, for today’s video, we will help you determine the Lewis Structure of Silicon Dioxide. It consists of one Silicon and two Oxygen atoms. And by follow... If you just purchased an Alexa Dot and are excited to start using it, you’re in luck. Setting up your Alexa Dot is a straightforward process that can be completed in just a few qui...! 58!! Using!Figure!5.1!is!as!simple!as!following!the!arrows.!!Start!with!the!top! arrow,!and!follow!its!direction!fromtail!to!head;!you!see!that!the!first!arrow!passes!Hello everyone! Welcome back to our channel, and in today’s video, we will help you do SiH4 Lewis Structure. Follow this video to know the detailed method an...The Silicon atom (Si) is at the center and it is surrounded by 2 Oxygen atoms (O). The Silicon atom does not have a lone pair while both the Oxygen atoms have 2 lone pairs. Let’s draw and understand this lewis dot structure step by step. (Note: Take a pen and paper with you and try to draw this lewis structure along with me. I am sure you ...Using Formal Charges to Distinguish Viable Lewis Structures. 8.2: Covalent Bonding and Lewis Dot Structures is shared under a CC BY 4.0 license and was authored, remixed, and/or curated by LibreTexts. Lewis dot symbols provide a simple rationalization of why elements form compounds with the observed stoichiometries.Question: Identify which of the Lewis-dot symbols for the neutral atoms are valid and which are invalid.ValidInvalid. Identify which of the Lewis - dot symbols for the neutral atoms are valid and which are invalid. There are 4 steps to solve this one.Using Formal Charges to Distinguish Viable Lewis Structures. 8.2: Covalent Bonding and Lewis Dot Structures is shared under a CC BY 4.0 license and was authored, remixed, and/or curated by LibreTexts. Lewis dot symbols provide a simple rationalization of why elements form compounds with the observed stoichiometries.Sep 24, 2021 · At the beginning of the 20 th century, an American physical chemist G. N. Lewis (1875–1946) devised a system of symbols—now called Lewis electron dot symbols (often shortened to Lewis dot symbols) that can be used for predicting the number of bonds formed by most elements in their compounds. Figure 4.2.1 4.2. 1 G. N. Lewis and the Octet Rule. Each Lewis dot symbol consists of the chemical symbol for an element surrounded by dots that represent its valence electrons. Cesium, for example, has the electron configuration [Xe]6 s1, which indicates one valence electron outside a closed shell. In the Lewis dot symbol, this single electron is represented as a single dot: Figure 8.6 G. N ...Jul 16, 2022 · consists of the chemical symbol for the element plus a dot for each valence electron. To write an element’s Lewis dot symbol, we place dots representing its valence electrons, one at a time, around the element’s chemical symbol. Up to four dots are placed above, below, to the left, and to the right of the symbol (in any order, as long as ... Here, I have explained 5 simple steps to draw the lewis dot structure of SI4 (along with images). So, if you are ready to go with these 5 simple steps, then let’s dive right into it! Lewis structure of SI4 contains four single bonds between the Sulfur (S) atom and each Iodine (I) atom. The Sulfur atom (S) is at the center and it is surrounded ...About. Transcript. 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 …At the beginning of the 20 th century, an American physical chemist G. N. Lewis (1875–1946) devised a system of symbols—now called Lewis electron dot symbols (often shortened to Lewis dot symbols) that can be used for predicting the number of bonds formed by most elements in their compounds. Figure 4.2.1 G. N. Lewis and the Octet Rule.

Lewis electron dot diagrams for ions have less (for cations) or more (for anions) dots than the corresponding atom. 10.2: Representing Valence Electrons with Dots is shared under a license and was authored, remixed, and/or curated by Marisa Alviar-Agnew & Henry Agnew. The Lewis Structure of a molecule shows how the valence electrons are ... . Apps similar to earnin

lewis dot for si

Based on Lewis dot symbols, predict the preferred oxidation state of Br, Rb, O, Si, and Sr. Based on Lewis dot symbols, predict how many bonds …When drawing a Lewis dot structure, the amount of dots around the element symbol equals the number of electrons in the outermost electron shell. Silicon has four valence electrons, therefore,...Si has 4 valence electronsH has 1 valence electron each so a total of 2. ... The Lewis dot structure is a diagram to show the bonding between the atoms of a molecule and pairs of electrons that ...A step-by-step explanation of how to draw the SiO4 4- Lewis Dot Structure (Silicate ion).For the SiO4 4- structure use the periodic table to find the total n...Question: Pre-lab Questions 1. Complete the following table: Element Group Valence Number Electrons Lewis Dot Structure Using the Octet/Duet rules, how many bonds do you think the element will usually form? 1 Н. 1 1 Li 1 1 Mg 2 2 AI 13 3 Si 14 4 P 15 5 S 16 6 CI 17 7 Ar 18 8. Please fill the table and change anything thats wrong. Show ...A step-by-step explanation of how to draw the Lewis dot structure for Ar (Argon). I show you where Argon is on the periodic table and how to determine how m...Drawing the Lewis Structure for SiF 62-. With SiF 62- be sure to add two additional valence electrons to your total because of the 2-. There are a total of 48 valence electrons in SiF 62- . Silicon (Si) is the least electronegative and goes at the center of the Lewis structure. Silicon (Si) is below Period Two on the periodic table and can hold ...A Lewis electron dot symbol (or electron dot diagram or a Lewis diagram or a Lewis structure) is a representation of the valence electrons of an atom that uses dots around …Aug 25, 2023 ... In this video, Mr. Krug shows how to draw Lewis electron-dot diagrams, working through several examples in the video.Solutions to Example 10.4.1. Steps for Writing Lewis Structures. Example 10.5.1 10.5. 1. 1. Determine the total number of valence electrons in the molecule or ion. Each H atom (group 1) has 1 valence electron, and the O atom (group 16) has 6 valence electrons, for a total of 8 valence electrons. 2.A: Lewis dot structure :- In this the number of valance electrons present in the atom are represented… Q: Draw the Lewis structure of Oz and then determine if the molecule is polar or nonpolar. A: The Lewis structure of the O2 molecule is ….

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