Question

the table lists the lattice energies of some compounds. compound lattice energy (kj/mol) lif -1,036 licl -853 naf -923 kf -821 nacl -786 which statement about crystal lattice energy is best supported by the information in the table? the lattice energy increases as cations get smaller, as shown by lif and kf. the lattice energy increases as the cations get larger, as shown by lif and licl. the lattice energy decreases as cations get smaller, as shown by nacl and naf. the lattice energy decreases as the cations get smaller, as shown by naf and kf.

Explanation:

晶格能大小与离子半径等因素有关，离子半径越小，晶格能越大。Li⁺半径小于K⁺半径，LiF晶格能(-1036 kJ/mol)大于KF晶格能(-821 kJ/mol)，说明阳离子半径越小，晶格能越大。

Answer:

The lattice energy increases as cations get smaller, as shown by LiF and KF.