Concept explainers
(a)
Interpretation:
Whether element 2 has higher electronegative value than that of element 4 should be indicated.
Concept Introduction:
Close relationship between ionic and covalent bonding models becomes apparent if the bond polarity and electronegativity is considered. Electronegativity is the measure of relative attractive for the shared pair of electrons in a bond. Higher the electronegative value for an atom, the more it attracts the shared pair of electrons towards itself.
In Periodic table, when moving from left to right in a period, the electronegativity value increases. While moving from top to bottom within group, the electronegativity value decreases. Nonmetals have higher electronegativity values than metals. Metals gives electrons and nonmetals accepts electrons.
(b)
Interpretation:
Whether element 5 has higher electronegative value than that of element 6 should be indicated.
Concept Introduction:
Close relationship between ionic and covalent bonding models becomes apparent if the bond polarity and electronegativity is considered. Electronegativity is the measure of relative attractive for the shared pair of electrons in a bond. Higher the electronegative value for an atom, the more it attracts the shared pair of electrons towards itself.
In Periodic table, when moving from left to right in a period, the electronegativity value increases. While moving from top to bottom within group, the electronegativity value decreases. Nonmetals have higher electronegativity values than metals. Metals gives electrons and nonmetals accepts electrons.
(c)
Interpretation:
Whether element 7 has higher electronegative value than that of element 8 should be indicated.
Concept Introduction:
Close relationship between ionic and covalent bonding models becomes apparent if the bond polarity and electronegativity is considered. Electronegativity is the measure of relative attractive for the shared pair of electrons in a bond. Higher the electronegative value for an atom, the more it attracts the shared pair of electrons towards itself.
In Periodic table, when moving from left to right in a period, the electronegativity value increases. While moving from top to bottom within group, the electronegativity value decreases. Nonmetals have higher electronegativity values than metals. Metals gives electrons and nonmetals accepts electrons.
(d)
Interpretation:
Whether element 3 has higher electronegative value than that of element 1 should be indicated.
Concept Introduction:
Close relationship between ionic and covalent bonding models becomes apparent if the bond polarity and electronegativity is considered. Electronegativity is the measure of relative attractive for the shared pair of electrons in a bond. Higher the electronegative value for an atom, the more it attracts the shared pair of electrons towards itself.
In Periodic table, when moving from left to right in a period, the electronegativity value increases. While moving from top to bottom within group, the electronegativity value decreases. Nonmetals have higher electronegativity values than metals. Metals gives electrons and nonmetals accepts electrons.
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General, Organic, and Biological Chemistry
- Which statements are true about electronegativity? (a) Electronegativity increases from left to right in a period of the Periodic Table. (b) Electronegativity increases from top to bottom in a column of the Periodic Table. (c) Hydrogen, the element with the lowest atomic number, has the smallest electronegativity. (d) The higher the atomic number of an element, the greater its electronegativity.arrow_forwardThe azide ion, N, is a symmetrical ion, in which all of the possible Lewis structures have formal charge on one or more atoms. Draw three possible Lewis structures for this ion. Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all nonbonding electrons. Show the formal charges of all atoms. Q NNNITY ¤•• Q Submit Q NENN N=N-N² N²NN с H O N S P F Br CI X Type the new charge. Press ENTER to finish editing. Press TAB to go through atoms in the structure. Previous Answers Request Answer X Incorrect; Try Again; One attempt remaining Morearrow_forwardRemaining Time: 31 minutes, 00 seconds. ¥ Question Completion Status: A Moving to another question will save this response. Question 6 Arrange the following in order of decreasing electronegativity (eg A>B>C}: Mo, Ge, Ba, S, Si, Sr A Moving to another question will save this response. F10 Prisc F2 F3 てい。 Esc F4 F5 Scr Lk & 23 2$ 2 9. R. E gel A Caps Lockarrow_forward
- There are four exceptions to the octet rule. State them below: A hydrogen atom will never carry an octet. Instead, a hydrogen atom carries a _____ which means it is in possession of _____ electrons. Boron (B) and Beryllium (Be) can exist with _______ (fewer or more) than an octet of electrons. Non-metals from period 3 and above can exist with _______ (fewer or more) than an octet of electrons. Free radicals are molecules that can have ______________ electrons.arrow_forwardRecognising exceptions to the octet rule.arrow_forward1. For each pair of elements listed determine if they will form an ionic (I) or covalent (C) bond. 2.General Properties of Ionic and Covalent Compounds (Use THIS LINK to complete the table) https://www.thoughtco.com/ionic-and-covalent-compounds-properties-3975966arrow_forward
- Decide whether these proposed Lewis structures are reasonable. proposed Lewis structure Is the proposed Lewis structure reasonable? Yes. No, it has the wrong number of valence electrons. The correct number is: No, it has the right number of valence electrons but doesn't satisfy the octet rule. The symbols of the problem atoms are: 0 Yes. No, it has the wrong number of valence electrons. a=ö:] The correct number is: No, it has the right number of valence electrons but doesn't satisfy the octet rule. The symbols of the problem atoms are: 0 Yes. No, it has the wrong number of valence electrons. :0: The correct number is: 0 HIC-H No, it has the right number of valence electrons but doesn't satisfy the octet rule. The symbols of the problem atoms are:" * If two or more atoms of the same element don't satisfy the octet rule, just enter the chemical symbol as many times as necessary. For example, if two oxygen atoms don't satisfy the octet rule, enter "O,0". X 5 ? : Z: I :Z:arrow_forwardDeciding whether a Lewis structure satisfies the octet rule.arrow_forwardAn incomplete Lewis structure is shown below. The structure only shows the atoms and how they are connected. The molecule has a net charge of zero. H Н—N—С- -о—с—Н H H Complete the Lewis structure giving all atoms full octets. If there is more than one way to do this, draw resonance structures showing all possibilities. If not, just draw one Lewis structure. Be sure to write in any non-zero formal charges. Click and drag to start drawing a structure.arrow_forward
- Decide whether these proposed Lewis structures are reasonable. proposed Lewis structure Is the proposed Lewis structure reasonable? Yes. H No, it has the wrong number of valence electrons. The correct number is: Н — N— Н No, it has the right number of valence electrons but doesn't satisfy the octet rule. The symbols of the problem atoms are:* Yes. No, it has the wrong number of valence electrons. The correct number is: Н — С — С — Н No, it has the right number of valence electrons but doesn't satisfy the octet rule. The symbols of the problem atoms are:* Yes. No, it has the wrong number of valence electrons. The correct number is: :N-N= N | No, it has the right number of valence electrons but doesn't satisfy the octet rule. The symbols of the problem atoms are:* * If two or more atoms of the same element don't satisfy the octet rule, just enter the chemical symbol as many times as necessary. For example, if two oxygen atoms don't satisfy the octet rule, enter "O,0". :0 : :0 :arrow_forwardWrite the Lewis structure(s) of the following ion and the compound to complete the table below. Ion/ compound Total number of valence electrons Lewis Structure NO2- KNO2 leave emptyarrow_forwardproposed Lewis structure Is the proposed Lewis structure reasonable? Yes. No, it has the wrong number of valence electrons. Н — о — Н The correct number is: O No, it has the right number of valence electrons but doesn't satisfy the octet rule. The symbols of the problem atoms are:* Yes. No, it has the wrong number of valence electrons. The correct number is: O Н — Н — О No, it has the right number of valence electrons but doesn't satisfy the octet rule. The symbols of the problem atoms are:* Yes. No, it has the wrong number of valence electrons. :0-c- The correct number is: O — С — о: No, it has the right number of valence electrons but doesn't satisfy the octet rule. The symbols of the problem atoms are:* * If two or more atoms of the same element don't satisfy the octet rule, just enter the chemical symbol as many times as necessary. For example, if two oxygen atoms don't satisfy the octet rule, enter "O,0". :0: :0 :arrow_forward
- General, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage LearningOrganic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning