Learning Goal:When covalent compounds, such as water (H₂O), form covalentDonds, they share valence electrons. A Lewis dot structure orelectron dot structure is a drawing that represents chemicalbonds between atoms as shared or transferred electrons, wherethe valence electrons are represented as dots. For example,notice the Lewis structure of NC13 (Figure 1). When a pair ofa bond.electrons is shared between two atoms, a line is drawn to indicatetabFigures lockResolving host...:C—N—C::C1:esccontrolaltF1optionZ2WSXHcommand#1 of 1320 F3$108090094EDCHow to draw a Lewis dot structureTo draw a Lewis dot structure, follow these steps:skeletal structure of water is shown here: H O H.1. Draw the skeletal structure of the molecule. The skeletal structure shows how the atoms of the molecule should be connected. For example, t2. Determine the number of electrons for the Lewis structure by summing the valence electrons of each atom the molecule..3. Distribute the electrons among the atoms, giving octets (or duets for hydrogen) to as many atoms as possible. According to the octet rule, atomtransfer or share electrons to obtain an outer shell that contains eight electrons. It is important to note that some atoms, including hydrogen, dofollow the octet rule. Hydrogen is stable when it contains two electrons.4. If any atoms lack an octet, form double or triple bonds as necessary to give them octets.Part AFor neutral molecules, which statements about covalent Lewis structures are true?Drag each item to the appropriate bin.View Available Hint(s)F4RTrueF%5For a neutral molecule, thenumber of electrons in theLewis structure is the sum of thevalence electrons for the atoms.VHydrogen atoms are often thecentral atom of a Lewis structure.F5TGBMacBook AirYH&Electrons of covalent compoundsmay be shared between atoms.7Each atom of a Lewis structuremust have eight electrons.FalseJNJ*00Reset8MкHelpF9VLF10command88{PF11. VReview I Constants IaltoptionF12Gdele

For neutral molecules, the following statement is correct about the Lewis Structure:

Part A For neutral molecules, which statements about covalent Lewis structures are true? Drag each item to the appropriate bin. View Available Hint(s) True For a neutral molecule, the number of electrons in the Lewis structure is the sum of the valence electrons for the atoms. Hydrogen atoms are often the central atom of a Lewis structure. Reset Help Electrons of covalent compounds may be shared between atoms. Each atom of a Lewis structure must have eight electrons. False

Part A For neutral molecules, which statements about covalent Lewis structures are true? Drag each item to the appropriate bin. View Available Hint(s) True For a neutral molecule, the number of electrons in the Lewis structure is the sum of the valence electrons for the atoms. Hydrogen atoms are often the central atom of a Lewis structure. Reset Help Electrons of covalent compounds may be shared between atoms. Each atom of a Lewis structure must have eight electrons. False

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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