Concept explainers
Interpretation:
The element that is most electronegative has to be chosen from the given options.
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.
Bond polarity is the degree of inequality in the electron pair sharing between two atoms in a
The ionic and covalent bonds can be identified by using the electronegativity difference between the atoms that are bonded together.
- Bonds that are formed between two similar electronegative atoms are known as nonpolar covalent bonds. The electronegativity difference has to be 0.4 or less.
- The bonds that have electronegativity difference greater than 0.4 and lesser than 1.5 are known as polar covalent bonds.
- If the electronegativity difference is more than 2.0, then the bond is considered to be ionic.
- If the electronegativity difference is between 1.5 to 2.0, then the bond can be ionic or covalent depending upon the type of atoms that is bonded. If the bond is between a metal and nonmetal, then it is ionic and if it is between two nonmetals then it is polar covalent.
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GENERAL,ORGANIC,+BIO.CHEM.-MINDTAP
- Part A Use formal charge to determine which of the following two Lewis structures is better (Figure 1) Structure I is the better Lewis structure. Structure II is the better Lewis structure. Submit Request Answer Provide Feedback Figure 1 of 1 Н Н Н-$—$ Н-С—$ Structure I Structure IIarrow_forwardI Review I Constants Part A - Lewis Structure with a Multiple Bond Which of these molecules has a Lewis structure with a central atom having no nonbonding electron pairs? Check all that apply. PF3 O SIF4 O H2S O CO2 Submit Request Answer Provide Feedbackarrow_forwardReflection 1 • An atom becomes stable when bonded with other atoms, how will you relate this in human relationship? • What type of bond do you have with the people around you?arrow_forward
- TEST - II Direction: Identify if the given molecules are polar, non-polar, or ionic bond. Type of Bond Non-polar Polar lonic Value of Electronegativity Difference 0-0.4 Less than 1.7 1.7 or more Molecules Electronegativity Values Electronegativity difference Type of bond CH NH, HCI Naciarrow_forwardOrubidium Clear my choice How many electrons are in the most common phosphide ion? (Record your two-digit answer) 4 Answer:arrow_forwardElectronegativity Values for Selected Elements (Select all that apply.) O hydrogen iodide, HI Ochlorine, Cl2 O hydrogen chloride, HCl O fluorine chloride, FC1 Submit Answer Try Another Version 1 item attempt remainingarrow_forward
- t t From the Lewis structures of the species given, pick all of those in which the central atom obeys the octet rule. Dö=c=ö D:6-X-8: :0: :F-B- =F: FR EFE None of the Above Submit Answer Try Another Version 2 item attempts remainingarrow_forwardPart B How many equivalent resonance structures can be drawn for the SO, molecule where the central sulfur obeys the octet rule (including the one you've drawn)? ? Submit Request Answer Part C What is the formal charge on the central sulfur atom in the Lewis Structure for SO, where the octet rule is obeyed? Submit Request Answerarrow_forwardHow many o bonds are there in the molecule given below? Answer:arrow_forward
- TUTOR Determining Molecular Shapes II The Lewis structure for CH4 is shown. What is the electron-pair geometry and the molecular geometry around the central atom? H-C-H H Electron-Pair Geometry: Submit H Molecular Geometry: Submit Answer Show Approach Show Tutor Steps Try Another Version 2 item attempts remainingarrow_forwarda. Choose the complete Lewis structure for the following partially completed Lewis structure. Enter the total number of valence electrons in the box. -structurearrow_forwardHow many o and a bonds are in this molecule? :N=C-C H. number of o bonds: number of ä bonds: Incorrect Incorrectarrow_forward
- Chemistry In FocusChemistryISBN:9781305084476Author:Tro, Nivaldo J., Neu, Don.Publisher:Cengage Learning