1 Nov 2021
Problem 29b
Page 336
Section: Problems by Topic
Chapter 8: Periodic Properties of the Elements
Textbook ExpertVerified Tutor
1 Nov 2021
Given information
Cs+ and I- are given. Larger species from Cs+ and I- must be selected.
Step-by-step explanation
Step 1.
In the periodic table, atomic size decreases from left to right across a period. Because with the increasing atomic number the electrons are added in the same shell and no new shell is included. This causes an increase in effective nuclear charge due to which size decreases. On the other hand, atomic size increases from top to bottom across a group due to the inclusion of new shells in each group.
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