Ücretsiz Kullanmaya Başla

Crystal lattices Transitional Reasoning Practice

Chemistry · Chemical Bonding & Molecular Structure · Chemistry · Ionic Bonding

1 Chemistry practice questions on Crystal lattices. Questions that build towards applied reasoning.

Layout:

Choose how questions appear in the preview and test.

Preview the questions below, then start to answer and see your results.

Questions

  1. 1.

    A laboratory technician analyzes a crystalline compound consisting of alternating positive and negative ions arranged in a rigid three-dimensional lattice. When subjected to a sharp mechanical blow, the crystal fractures cleanly along a plane rather than deforming malleably, and while the intact solid does not conduct electricity, its molten liquid conducts readily. Based on the structural properties of ionic crystal lattices, which statement correctly explains the underlying microscopic cause of this observed mechanical behavior?

    • A) The mechanical impact breaks strong covalent bonds shared between adjacent atoms, causing the lattice to collapse into neutral gaseous molecules.
    • B) Free-flowing valence electrons are displaced toward the point of impact, creating an accumulation of localized charge that forces the crystal apart.
    • C) The applied force shifts adjacent layers of ions so that ions of like charge align next to one another, resulting in strong repulsive electrostatic forces that cleave the lattice.
    • D) Mobile cations migrate away from the impact site to form metallic domains, leaving unstable voids that collapse under ambient pressure.

Answers and step-by-step solutions appear after you finish the test.