Answer: Charges and sizes of ions (higher charge and smaller size = higher lattice energy).
- A Charges and sizes of ions (higher charge and smaller size = higher lattice energy)
- B The surrounding ambient temperature alone, independent of any ionic property
- C The total number of electrons present throughout the crystal lattice
- D The visible colour displayed by the compound under normal lighting
Correct answer: A. Charges and sizes of ions (higher charge and smaller size = higher lattice energy)
Explanation: Lattice energy is proportional to (charge product)/(ion distance); small, highly charged ions give the highest lattice energies.
VSEPR theory predicts molecular shape from the number of bonding and lone electron pairs around the central atom.
Concept context
Understand how atoms join to form molecules. Covers ionic and covalent bonding, VSEPR theory, hybridization (sp, sp², sp³), molecular orbital theory, bond polarity, and intermolecular forces like hydrogen bonding.
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