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Chapter 37: Problem 2

Why do ionically bonded materials have high melting points?

Short Answer

Expert verified
Ionic compounds have high melting points due to the strong electrostatic attraction between ions in their crystal lattice structure. Overcoming these forces to cause the compound to melt requires high levels of energy.

Step by step solution

01

Understanding Ionic Bond

An ionic bond is a type of chemical bond that occurs when an atom transfers one or more electrons to another atom. This results in a positive ion (cation) and a negative ion (anion). These opposite charges attract each other forming a bond, which is the ionic bond.
02

Structure of Ionic Compounds

Ionic compounds form a crystal lattice structure. This regular, repeating pattern is due to the strong electrostatic attraction between the oppositely charged ions. This strong force operates in all directions, leading to a solid structure.
03

Relating Ionic Bonding and High Melting Points

Melting an ionic compound requires breaking its systematic crystal lattice, which means overcoming the strong electrostatic forces holding the ions together. High levels of energy are needed for this process, which contributes to the high melting point of ionic compounds.

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