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Rental Listings in Te x Front Page 2017Spri x MasteringChemistry: C x MasteringChemistry: C x Dynamic Periodic Table x G Draw Lewis structu f x Obaid C Secure https:// masteringchemistry.co session signed in as Obaid Safeer I Help l close CHM113BRIGGSHWSPRING2017 Chapter 7 Problem 7.36 Resources previous l 7 of 20 l next Problem 7.36 Submit My Answers Give Up In the ionic compounds LiF, NaCl, KBr, and RbI, the Correct measured cation-anion distances are 2.01 A (Li 2.82A (Na-C), 3.30 A (K-Br), and 3.67 A (Rb-D, respectively. Part C What estimates of the cation-anion distance would you obtain for these four compounds using bonding atomic radi? Enter your answers numerically separated by commas. du-F, dNa-cu.dK-Br, Rb 0.08, 0.01.0.04, 0.05 Submit My Answers Give Up Incorrect; Try Again Part D Are these estimates as accurate as the estimates using ionic radii? Yes No, the estimates using ionic radii are more accurate. No, the estimates using bonding atomic radii are more accurate.Explanation / Answer
LiF:
The ionic radius of cation Li+= 0.90Å
The ionic radius of anion F-= 1.19Å
Cation-anion distance=0.90Å + 1.19Å= 2.09Å
2.NaCl:
The ionic radius of cation Na+= 1.16 Å
The ionic radius of anion Cl-= 1.67 Å
Cation-anion distance:1.16Å + 1.67Å=2.83Å
3.KBr
The ionic radius of cation K+= 1.52Å
The ionic radius of anion Br-= 1.82Å
Cation-anion distance= 1.52Å + 1.82Å=3.34 Å
4.RbI
The ionic radius of cation Rb+= 1.66Å
The ionic radius of anion I-= 2.06Å
Cation-anion distance= 1.66Å + 2.06Å= 3.72 Å
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