Which of the following property regarding metal is correct? a)Low melt...
Properties of Metals: High Melting and Boiling Point
Metals are a group of elements that are known for their unique physical and chemical properties. One of the most important properties of metals is their high melting and boiling point. This property is due to the strong metallic bonding that exists between the atoms in a metal.
Metallic Bonding
Metallic bonding is a type of chemical bonding that occurs between metal atoms. In metallic bonding, the valence electrons are delocalized, meaning that they are not associated with any particular atom but are free to move throughout the metal lattice. This creates a sea of electrons that holds the metal atoms together.
High Melting and Boiling Point
The strong metallic bonding in metals results in a high melting and boiling point. When a metal is heated, the energy is absorbed by the metal lattice, causing the atoms to vibrate more rapidly. At a certain temperature, the energy is sufficient to overcome the metallic bonding, and the metal melts. Similarly, when a metal is heated to its boiling point, the energy is sufficient to overcome the metallic bonding and the metal vaporizes.
Examples
Some examples of metals and their melting and boiling points are:
- Iron (Fe): Melting point - 1535°C, Boiling point - 2750°C
- Copper (Cu): Melting point - 1083°C, Boiling point - 2567°C
- Gold (Au): Melting point - 1064°C, Boiling point - 2856°C
Conclusion
In summary, metals have a high melting and boiling point due to the strong metallic bonding that exists between the atoms in a metal. This property is important for many applications of metals, including their use in high-temperature environments such as furnaces and engines.
Which of the following property regarding metal is correct? a)Low melt...
Answer:(B) High melting and boiling point
As the number of electrostatic forces to be broken is extremely large, and so metals have high melting and boiling points.
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