Concept explainers
(a)
Interpretation:
The total number of electron dots that is present in
Concept Introduction:
Lewis structure clearly depicts the bonding and nonbonding electrons in the atom. This is only partially useful for the molecule that contains one or more multiple bonds and when coordinate covalent bond is present in the molecule. For drawing Lewis structure a systematic procedure is followed. They are,
- The total number of valence electrons that is present in molecule is calculated by adding all the valence electrons of the atoms present in the molecule.
- The chemical symbols for the atoms that is present in the molecule is written in the order that they are bonded. After this a single covalent bond is placed between each atoms as two electrons.
- The nonbonding electrons are added to each atom that is bonded to the central atom so that it contains octet of electrons. For hydrogen alone the “octet” is only two electrons.
- The remaining electrons has to be placed on the central atom in the structure.
- If there is no octet of electrons present in the central atom, then use one or more pairs of nonbonding electrons that is bonded to the central atom to form double or triple bonds.
- The total number of electrons has to be counted and it has to be confirmed whether the count is same as that of the number of valence electrons that is available for bonding.
(b)
Interpretation:
The total number of electron dots that is present in
Concept Introduction:
Lewis structure clearly depicts the bonding and nonbonding electrons in the atom. This is only partially useful for the molecule that contains one or more multiple bonds and when coordinate covalent bond is present in the molecule. For drawing Lewis structure a systematic procedure is followed. They are,
- The total number of valence electrons that is present in molecule is calculated by adding all the valence electrons of the atoms present in the molecule.
- The chemical symbols for the atoms that is present in the molecule is written in the order that they are bonded. After this a single covalent bond is placed between each atoms as two electrons.
- The nonbonding electrons are added to each atom that is bonded to the central atom so that it contains octet of electrons. For hydrogen alone the “octet” is only two electrons.
- The remaining electrons has to be placed on the central atom in the structure.
- If there is no octet of electrons present in the central atom, then use one or more pairs of nonbonding electrons that is bonded to the central atom to form double or triple bonds.
- The total number of electrons has to be counted and it has to be confirmed whether the count is same as that of the number of valence electrons that is available for bonding.
(c)
Interpretation:
The total number of electron dots that is present in
Concept Introduction:
Lewis structure clearly depicts the bonding and nonbonding electrons in the atom. This is only partially useful for the molecule that contains one or more multiple bonds and when coordinate covalent bond is present in the molecule. For drawing Lewis structure a systematic procedure is followed. They are,
- The total number of valence electrons that is present in molecule is calculated by adding all the valence electrons of the atoms present in the molecule.
- The chemical symbols for the atoms that is present in the molecule is written in the order that they are bonded. After this a single covalent bond is placed between each atoms as two electrons.
- The nonbonding electrons are added to each atom that is bonded to the central atom so that it contains octet of electrons. For hydrogen alone the “octet” is only two electrons.
- The remaining electrons has to be placed on the central atom in the structure.
- If there is no octet of electrons present in the central atom, then use one or more pairs of nonbonding electrons that is bonded to the central atom to form double or triple bonds.
- The total number of electrons has to be counted and it has to be confirmed whether the count is same as that of the number of valence electrons that is available for bonding.
(d)
Interpretation:
The total number of electron dots that is present in
Concept Introduction:
Lewis structure clearly depicts the bonding and nonbonding electrons in the atom. This is only partially useful for the molecule that contains one or more multiple bonds and when coordinate covalent bond is present in the molecule. For drawing Lewis structure a systematic procedure is followed. They are,
- The total number of valence electrons that is present in molecule is calculated by adding all the valence electrons of the atoms present in the molecule.
- The chemical symbols for the atoms that is present in the molecule is written in the order that they are bonded. After this a single covalent bond is placed between each atoms as two electrons.
- The nonbonding electrons are added to each atom that is bonded to the central atom so that it contains octet of electrons. For hydrogen alone the “octet” is only two electrons.
- The remaining electrons has to be placed on the central atom in the structure.
- If there is no octet of electrons present in the central atom, then use one or more pairs of nonbonding electrons that is bonded to the central atom to form double or triple bonds.
- The total number of electrons has to be counted and it has to be confirmed whether the count is same as that of the number of valence electrons that is available for bonding.
Want to see the full answer?
Check out a sample textbook solutionChapter 5 Solutions
General, Organic, and Biological Chemistry
- What is meant by a chemical bond? Why do atoms form bonds with each other? Why do some elements exist as molecules in nature instead of as free atoms?arrow_forwardLewis structure for sulfur dioxide S02 Number of electrons set(groups)? Number of bonding electron sets (groups)? Number of non-bonding electron sets (groups) or lone pairs? How many bonds have a dipole ? If so do the dipole cancel each out?arrow_forwardDraw out the Lewis Structures for OH2 and BeH2The molecule BeH2 has no lone pairs of es while OH2 does. Using VSEPR Theory make models which represent BeH2 and OH2.arrow_forward
- The formula: SOF2 what is the 3D Lewis structure with bond angles and all dipole moments?what is the least electronegative element? What is the number of electron regions surrounding the central atom ? is it octet exceeded? what is the genereral formula? Is it polar or non polar molecule? what is the molecular geometry? what is the electron pair geometry?arrow_forwardWhy are eight electrons (four pairs) surrounding each non‐hydrogen atom the optimal electronic arrangement for covalent molecules? What does the number eight represent?arrow_forwardIn the BEST Lewis structure for the molecule XeF2, how many unshared pairs are there on the central atom? Enter a number.arrow_forward
- Which of the following shows the correct Lewis structure for the molecule SO3SO3? A B Carrow_forward1-How many total shared electrons are there in the Lewis structure of CS2? a.10 b.6 c.2 d.8 e.4 2-In which bond does the Cl atom have the highest electron density, i.e. it attracts the electrons in the covalent bonds the most? a.N—Cl b.H—Cl c.O—Cl d.S—Cl e.Br—Clarrow_forwardHow do you determine the number of electrons that go into the Lewis structure of a molecule? A polyatomic ion?arrow_forward
- Review the rules for drawing Lewis structures and try to draw the correct Lewis structures for the molecules shown in part A of this exercise.arrow_forwardOne type of exception to the octet rule are compounds with central atoms having fewer than eight electrons around them. BeH2 and BH3 are examples of this type of expectation. Draw the Lewis structures for BeH2 and BH3.arrow_forwardWrite Lewis structures that obey the octet rule for each of the following molecules and ions. (In each case the first atom listed is the central atom.) a. POCl3, SO42-, XeO4, PO43-, ClO4- b. NF3, SO32-, PO33-.Cl3- c. ClO2-, SCl2, PCl2- d. Considering your answers to part a, b, and c, what conclusions can you draw concerning the structures of species containing the same number of atoms and the same number of valence electrons?arrow_forward
- World of Chemistry, 3rd editionChemistryISBN:9781133109655Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCostePublisher:Brooks / Cole / Cengage LearningIntroductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage Learning