If you have an unknown material that is brittle solid and semiconductive what kind of substance would it be A it could be a metal B it must be a nonmetal C it could be a nonmetal or a metalloid D it must be a metalloid

Answer 1

The correct answer is C: it could be a nonmetal or a metalloid.

Brittle solids that are semiconductive are often found among metalloids, such as silicon or germanium, as well as some nonmetals under certain conditions. While metals are typically ductile and good conductors, semiconductive behavior is more characteristic of nonmetals and metalloids.