Problem: Of the compounds below, __________ has the smallest ionic separation.A) KFB) K2SC) RbClD) SrBr2E) RbF

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FREE Expert Solution

We are asked which of the compounds has the smallest ionic separation.

  • This relates to the lattice energy. 
  • The lower the lattice energy, the smaller the ionic separation. 

To estimate the lattice energy (or ionic bond energy) of an ionic compound, we will use the following equation:

Radius = period number


To determine the cation and anion charge, recall that some elements have common charges based on what group they belong to on the periodic table:

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Problem Details

Of the compounds below, __________ has the smallest ionic separation.

A) KF

B) K2S

C) RbCl

D) SrBr2

E) RbF

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Lattice Energy concept. You can view video lessons to learn Lattice Energy. Or if you need more Lattice Energy practice, you can also practice Lattice Energy practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Duarte's class at MDC.