To explain why AHan for RbCl is different than that for KCI, the student investigates factors that affect AHoln and finds that ionic radius and lattice enthalpy (which can be defined as the AH associated with the separation of a solid crystal into gaseous ions) contribute to the process. The students consults references and collects the data shown in the table below. lonic Radius (pm) lon к' 138 Rb* 152 b. Using principles of atomic structure, explain why the Rb' ion is larger than the K' ion

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Chapter1: Chemical Foundations
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To explain why AHan for RbCl is different than that for KCI, the student investigates factors that
affect AHoln and finds that ionic radius and lattice enthalpy (which can be defined as the AH
associated with the separation of a solid crystal into gaseous ions) contribute to the process. The
students consults references and collects the data shown in the table below.
lonic Radius (pm)
lon
к'
138
Rb*
152
b. Using principles of atomic structure, explain why the Rb' ion is larger than the K' ion
Transcribed Image Text:To explain why AHan for RbCl is different than that for KCI, the student investigates factors that affect AHoln and finds that ionic radius and lattice enthalpy (which can be defined as the AH associated with the separation of a solid crystal into gaseous ions) contribute to the process. The students consults references and collects the data shown in the table below. lonic Radius (pm) lon к' 138 Rb* 152 b. Using principles of atomic structure, explain why the Rb' ion is larger than the K' ion
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