Question

which type of material is the best thermal conductor? nonmetal metalloid metal noble gas

Explanation:

Metals have free - moving electrons that can transfer thermal energy efficiently. Nonmetals generally have poor thermal conductivity as they lack these free - moving charge carriers. Metalloids have intermediate properties between metals and nonmetals but are not as good as metals in thermal conduction. Noble gases are in the gaseous state under normal conditions and do not conduct heat well compared to metals.

Answer:

metal