13 Nov 2021
Problem 10
Page 374
Section: Problems by Topic
Chapter 9: Chemical Bonding I:The Lewis Model
Textbook ExpertVerified Tutor
13 Nov 2021
Given information
The lattice energy of rubidium iodide
The lattice energy of potassium bromide
Step-by-step explanation
Step 1.
The cation and anion in are and respectively. Similarly, the cation and anion in are and respectively.
Observe that both and belong to group of the periodic table. The size of the metal cations increases as one moves down the group. So the size of is greater than the size of .
Further, both and belong to group of the periodic table. The size of the nonmetal anion increases as one moves down the group. So the size of is greater than the size of .
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