Question

What causes the luster of a metal?

Answer 1

Luster of a metal:

• Luster is a property of metals due to which they shine.
• The shiny appearance of the metals is called metallic luster.
• The luster of a metal is due to the reflection of light which is caused by the presence of mobile electrons in the metal.

Examples of lustrous metals:

• Gold $\left(\mathrm{Au}\right)$
• Silver $\left(\mathrm{Ag}\right)$