It could be dull or shiny. It doesn't matter.
a nonmetal because a metal is shiny and strong so a nonmetal is brittle and dull
You can make almost anything shiny by polishing it.
Dull is not a substance but rather an adjective describing the appearance of an object. However, in the context of materials, metals typically have a shiny luster, whereas nonmetals can often appear dull. Therefore, if something is described as dull, it is more likely to be a nonmetal.
The element is most likely a metal, as metals tend to have good electrical conductivity. The description of a black, dull surface suggests that the metal may not be very shiny or reflective, giving it a dull appearance.
shiny
a nonmetal because a metal is shiny and strong so a nonmetal is brittle and dull
Metalloids can exhibit a range of physical properties, including both metallic and non-metallic characteristics. This means that some metalloids can appear dull, while others can appear shiny. For example, boron is a metalloid that is typically dull in appearance, while silicon can have a shiny, metallic luster. The appearance of a metalloid depends on its specific atomic structure and bonding characteristics.
Iron is not beautiful but dull is an exaggerated word.
You can dull shiny gold metal by using a fine-grit sandpaper to gently rub the surface until it becomes less shiny.
a nonmetal because a metal is shiny and strong so a nonmetal is brittle and dull
Metals are typically shiny, malleable, ductile, and good conductors of heat and electricity. They tend to lose electrons easily when forming compounds. Nonmetals are generally dull in appearance, brittle, poor conductors of heat and electricity, and gain electrons easily when forming compounds.
Technetium is a silvery-gray metal that can appear shiny when freshly prepared, but it can dull over time as it tarnishes in air.