Rental Listings in Te x Front Page 2017Spri x MasteringChemistry: C x MasteringC
ID: 499105 • Letter: R
Question
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
ANS--
LiF
The atomic radius of Li = 1.34Å
The atomic radius of F = 0.71Å
The distance between (Li-F) = 1.34Å + 0.71Å= 2.05 Å
Difference = 2.05Å – 2.01
= 0.04Å
NaCl
The atomic radius of Na = 1.54Å
The atomic radius of Cl = 0.99Å
The distance between (Na-Cl) = 1.54Å + 0.99Å= 2.53 Å
Difference = 2.82Å – 2.53Å= 0.29 Å
KBr
The atomic radius of K = 1.96Å
The atomic radius of Br = 1.14Å
The distance between (K-Br) = 1.96Å + 1.14Å= 3.10 Å
Difference = 3.30Å – 3.10Å=0.20 Å
RbI
The atomic radius of Rb = 2.11Å
The atomic radius of Cl = 0.99Å
The distance between (R-BI) = 2.11Å + 1.33Å= 3.44 Å
Difference = 3.67Å – 3.44Å=0.23 Å