These are values for the lattice energy KBr 688 , this is expected to have the s

Question

These are values for the lattice energy

KBr 688 , this is expected to have the smallest value because the size of the ions and the charge of +1 , - 1

LiF 1045

MgCl2 2326

CaO 3400

It is hard to find a value for BaS but if we remember that if the ionic radius increases the lattice energy decreases also the lattice energy increases according the charge of the ion

Since Ba and Sulphur have a bigger size than Ca and O then this compound must have a smaller value than CaO the order is

KBr < LiF < MbCl2 < BaS < CaO

Right answer is D

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Explanation / Answer

Name: Student number: 16. Put the following salts in the LiF, KBr, BaS, CaO, MgCl2 e expected order of increasing magnitude of lattice energy of incr C) LiF

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