Question

20. Which kind of attractive forces are likely to be holding particles together in a substance that melts at 681°C and that conducts electricity when molten but not when solid? (a) Ionic bonding (b) Metallic bonding (c) Network covalent bonding (d) Covalent molecular bonding​

Answer 1

Answer:

Learning Objectives

To understand the correlation between bonding and the properties of solids.

To classify solids as ionic, molecular, covalent (network), or metallic, where the general order of increasing strength of interactions.

Crystalline solids fall into one of four categories. All four categories involve packing discrete molecules or atoms into a lattice or repeating array, though network solids are a special case. The categories are distinguished by the nature of the interactions holding the discrete molecules or atoms together. Based on the nature of the forces that hold the component atoms, molecules, or ions together, solids may be formally classified as ionic, molecular, covalent (network), or metallic. The variation in the relative strengths of these four types of interactions correlates nicely with their wide variation in properties.

Explanation:

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