The conduction of heat and electricity is common to all

The answer is: metalloids

Yes, conduction of heat and electricity is a common characteristic of all metals. Metals are a group of distinct chemical elements that are characterized by their high ability to conduct electricity and heat, in addition to their ability to be shaped and ductile. These properties make metals ideal for use in electrical and thermal applications. Thus, thermal and electrical conductivity are common properties of all metals, making them ideal for use in a variety of applications.