Carbon and Sulfur are both elements that satisfy your query. There are several others, including many gases.
No, Silver is.
i don't know try google peebrain
non metals has no luster and is a poor conductor
No. (non metal).
diamond
It's pure carbon. If molded glass or ceramic is a resistor , then diamond must be even more so, as it can withstand more heat and pressure than either one of those materials.
The diamond allotrope of carbon is important because it is very hard and a good conductor of heat.
Yes. Diamond is a poor conductor of electricity.
A vacuum is a non conductor.
Carbon and Sulfur are both elements that satisfy your query. There are several others, including many gases.
because it is a heat conductor!
The non metal that has the highest melting point is Carbon. The reason for this is because Carbon has such strong bonds. An example of this would be a diamond.
Hmmm.... It would be hard to say any material was a non-conductor of heat, although certainly some materials are better heat conductors than others. Carbon forms Graphite and Diamond, both of which are relatively good heat conductors. (Graphite is also a good electrical conductor). Air and gasses tend to be poor heat conductors due to the rarefied nature of their molecules. and the best insulators such as silica aerogel utilize this, as well as limiting convection.
A diamond is a superior conductor of thermal energy (heat). It's better at this than anything else we know of. But diamond is a poor conductor of electricity. It's actually a pretty good insulator.
No, Silver is.
no