a metalloid
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.
Heat transfer... describes how well a building element conducts heat
an insulator
No, because iodne is a nonmatalic element.
A metal is a shiny element that conducts electricity and heat.
Heat transfer... describes how well a building element conducts heat
metal conducts heatEverything conducts heat, to a greater or lesser extent.
Sulfur is an element that typically has a dull surface.
A nonmetal is an element that tends to be dull, brittle, and a poor conductor of heat and electricity.
A conductor is a substance that conducts heat or electricity.
I believe you ment to say 'which element conducts electricity Cadmium or Sodium?'They both do. They are both metals.
because gold is a metal it conducts heat and electricity very well