Question

Aliyah found a tarnished silver dollar and recalled that tarnish results when metals react with oxygen or sulfur compounds in the air. She polished the silver dollar to remove the tarnish until it was shiny again. She also polished a copper bracelet and a gold ring. What physical property of these metals makes them shiny?

Answer 1

Respuesta:

The brightness is a function of the transparency, refractivity and structure of a mineral and there are two main types: metallic and non-metallic, but when the brightness is not of these two types it is called metalloid or submetallic. Minerals with a metallic appearance do.

Explicación:

Hope it helps you ;D