In an ionic compound, the size of the ions affects the internuclear distance (th

Question

In an ionic compound, the size of the ions affects the internuclear distance (the distance between the centers of adjacent ions), which affects lattice energy (a measure of the attractive force holding those ions together) Based on ion sizes, rank these compounds of their expected lattice energy Greatest Lattice energyl (strongest bonds) Note Many sources define lattice energies as negative values Please rank by magnitude and ignore the sign. Lattice energyl absolute value of the lattice energy. Least |Lattice energyl (weakest bonds) RbCI RbF Rb RDBr

Explanation / Answer

Lattice energy is inversely porportional to the sum of radius of cation and anion.

F^- has small size . It's salt has greater lattice energy.

I^- has large size. It's salt has lesser lattice energy.

RbF>RbCl>RbBr>RbI increasing order of lattice energy.

RbF graetest

RbCl

RbBr

RbI least

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