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Which one has the largest lattice energy and why? SrS or KBr Please walk me through...

Which one has the largest lattice energy and why?

SrS or KBr

Please walk me through how you figured it out. Thanks!

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Homework Answers

Answer #1

SrS has the largest lattice energy.
lattice energy depends on two factors:
(1) Charge on the ion: Higher is the ionic charge, higher is the lattice energy.
(2) Size of the ion: Lower is the ionic size, higher is the lattice energy.

The charge of ion is higher than the charge of ion.
The charge of ion is higher than the charge of Br(-I) ion
Also the ionic size of ion is higher than the ionic size of ion.

Due to these factors, the lattice energy of SrS is higher than the lattice energy of KBr.

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