Chapter 27, Problem 17A

To determine

The reason for the metals to be appears shine.

Explanation of Solution

Introduction:

In general, the metals are lustrous in nature and having shiny appearance.

The electrostatic forces of attraction between metal ions and delocalized electrons are called a metallic bond. The nature of metallic bonding accounts for many of the physical properties and characteristics of metals. When light falls on the crystal, the electrons get excited and the emission of radiation by the excited electrons makes a metal shiny in appearance.

Conclusion:

The metal is surrounded by the pool of electrons. So, when the light falls on the metal the electrons get excited and make the metal shiny in appearance.