Question

A metal’s luster is due to _____.

light energy being absorbed and given off again by its valence electrons
valence electrons giving off energy as they collide with one another
energy from the nuclei of its atoms being given off as visible light
the free flow of electrons between its atoms

Answer 1

C

Step-by-step explanation:

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.

So therefore the answer is: C